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The tiger (''Panthera tigris'') is a large cat and a member of the genus ''
Panthera ''Panthera'' is a genus within the family (biology), family Felidae, and one of two extant genera in the subfamily Pantherinae. It contains the largest living members of the cat family. There are five living species: the jaguar, leopard, lion, ...
'' native to
Asia Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...
. It has a powerful, muscular body with a large head and paws, a long tail and orange fur with black, mostly vertical stripes. It is traditionally classified into nine recent
subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...
, though some recognise only two subspecies, mainland Asian tigers and the island tigers of the Sunda Islands. Throughout the tiger's range, it inhabits mainly forests, from
conifer Conifers () are a group of conifer cone, cone-bearing Spermatophyte, seed plants, a subset of gymnosperms. Scientifically, they make up the phylum, division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a sin ...
ous and
temperate broadleaf and mixed forest Temperate broadleaf and mixed forest is a temperate climate terrestrial habitat type defined by the World Wide Fund for Nature, with broadleaf tree ecoregions, and with conifer and broadleaf tree mixed coniferous forest ecoregions. Thes ...
s in the
Russian Far East The Russian Far East ( rus, Дальний Восток России, p=ˈdalʲnʲɪj vɐˈstok rɐˈsʲiɪ) is a region in North Asia. It is the easternmost part of Russia and the Asia, Asian continent, and is coextensive with the Far Easte ...
and
Northeast China Northeast China () is a geographical region of China, consisting officially of three provinces Liaoning, Jilin and Heilongjiang. The heartland of the region is the Northeast China Plain, the largest plain in China with an area of over . The regi ...
to
tropical and subtropical moist broadleaf forests Tropical and subtropical moist broadleaf forests (TSMF), also known as tropical moist forest, is a subtropical and tropical forest habitat type defined by the World Wide Fund for Nature (WWF). Description TSMF is generally found in la ...
on the
Indian subcontinent The Indian subcontinent is a physiographic region of Asia below the Himalayas which projects into the Indian Ocean between the Bay of Bengal to the east and the Arabian Sea to the west. It is now divided between Bangladesh, India, and Pakista ...
and
Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...
. The tiger is an apex predator and preys mainly on
ungulate Ungulates ( ) are members of the diverse clade Euungulata ("true ungulates"), which primarily consists of large mammals with Hoof, hooves. Once part of the clade "Ungulata" along with the clade Paenungulata, "Ungulata" has since been determined ...
s, which it takes by ambush. It lives a mostly solitary life and occupies
home range A home range is the area in which an animal lives and moves on a periodic basis. It is related to the concept of an animal's territory which is the area that is actively defended. The concept of a home range was introduced by W. H. Burt in 1943. ...
s, defending these from individuals of the same sex. The range of a male tiger overlaps with that of multiple females with whom he mates. Females give birth to usually two or three cubs that stay with their mother for about two years. When becoming independent, they leave their mother's home range and establish their own. Since the early 20th century, tiger populations have lost at least 93% of their historic range and are locally extinct in West and
Central Asia Central Asia is a region of Asia consisting of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan. The countries as a group are also colloquially referred to as the "-stans" as all have names ending with the Persian language, Pers ...
, in large areas of
China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...
and on the islands of
Java Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...
and
Bali Bali (English:; Balinese language, Balinese: ) is a Provinces of Indonesia, province of Indonesia and the westernmost of the Lesser Sunda Islands. East of Java and west of Lombok, the province includes the island of Bali and a few smaller o ...
. Today, the tiger's range is severely fragmented. It is listed as
Endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, inv ...
on the
IUCN Red List of Threatened Species The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological spe ...
, as its range is thought to have declined by 53% to 68% since the late 1990s. Major threats to tigers are
habitat destruction Habitat destruction (also termed habitat loss or habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease ...
and fragmentation due to
deforestation Deforestation or forest clearance is the removal and destruction of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. Ab ...
,
poaching Poaching is the illegal hunting or capturing of wild animals, usually associated with land use rights. Poaching was once performed by impoverished peasants for subsistence purposes and to supplement meager diets. It was set against the huntin ...
for fur and the illegal trade of body parts for medicinal purposes. Tigers are also victims of human–wildlife conflict as they attack and prey on livestock in areas where natural prey is scarce. The tiger is legally protected in all range countries. National conservation measures consist of action plans, anti-poaching patrols and schemes for monitoring tiger populations. In several range countries,
wildlife corridor A wildlife corridor, also known as a habitat corridor, or green corridor, is a designated area habitat (ecology), that connects wildlife populations that have been separated by human activities or structures, such as development, roads, or land ...
s have been established and tiger reintroduction is planned. The tiger is among the most popular of the world's charismatic megafauna. It has been kept in captivity since ancient times and has been trained to perform in
circus A circus is a company of performers who put on diverse entertainment shows that may include clowns, acrobats, trained animals, trapeze acts, musicians, dancers, hoopers, tightrope walkers, jugglers, magicians, ventriloquists, and unicy ...
es and other entertainment shows. The tiger featured prominently in the ancient
mythology Myth is a genre of folklore consisting primarily of narratives that play a fundamental role in a society. For scholars, this is very different from the vernacular usage of the term "myth" that refers to a belief that is not true. Instead, the ...
and
folklore Folklore is the body of expressive culture shared by a particular group of people, culture or subculture. This includes oral traditions such as Narrative, tales, myths, legends, proverbs, Poetry, poems, jokes, and other oral traditions. This also ...
of cultures throughout its historic range and has continued to appear in culture worldwide.


Etymology

The
Old English Old English ( or , or ), or Anglo-Saxon, is the earliest recorded form of the English language, spoken in England and southern and eastern Scotland in the Early Middle Ages. It developed from the languages brought to Great Britain by Anglo-S ...
''tigras'' derives from
Old French Old French (, , ; ) was the language spoken in most of the northern half of France approximately between the late 8th -4; we might wonder whether there's a point at which it's appropriate to talk of the beginnings of French, that is, when it wa ...
, from Latin , which was a borrowing from (). Since ancient times, the word has been suggested to originate from the Armenian Armenian may refer to: * Something of, from, or related to Armenia, a country in the South Caucasus region of Eurasia * Armenians, the national people of Armenia, or people of Armenian descent ** Armenian diaspora, Armenian communities around the ...
or Persian word for 'arrow', which may also be the origin of the name for the river Tigris">Persian language">Persian word for 'arrow', which may also be the origin of the name for the river Tigris. However, today, the names are thought to be homonyms, and the connection between the tiger and the river is doubted.


Taxonomy

In 1758, Carl Linnaeus described the tiger in his work ''Systema Naturae'' and gave it the
scientific name In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...
''Felis tigris'', as the genus ''Felis'' was being used for all cats at the time. His scientific description was based on descriptions by earlier naturalists such as Conrad Gessner and Ulisse Aldrovandi. In 1929,
Reginald Innes Pocock Reginald Innes Pocock, (4 March 1863 – 9 August 1947) was a British zoologist. Pocock was born in Clifton, Bristol, the fourth son of Rev. Nicholas Pocock and Edith Prichard. He began showing interest in natural history at St. Edward's ...
placed the species in the genus ''
Panthera ''Panthera'' is a genus within the family (biology), family Felidae, and one of two extant genera in the subfamily Pantherinae. It contains the largest living members of the cat family. There are five living species: the jaguar, leopard, lion, ...
'' using the scientific name ''Panthera tigris''.


Subspecies

Nine recent tiger
subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...
have been proposed between the early 19th and early 21st centuries, namely the
Bengal Bengal ( ) is a Historical geography, historical geographical, ethnolinguistic and cultural term referring to a region in the Eastern South Asia, eastern part of the Indian subcontinent at the apex of the Bay of Bengal. The region of Benga ...
, Malayan,
Indochinese Mainland Southeast Asia (historically known as Indochina and the Indochinese Peninsula) is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to th ...
, South China, Siberian, Caspian, Javan,
Bali Bali (English:; Balinese language, Balinese: ) is a Provinces of Indonesia, province of Indonesia and the westernmost of the Lesser Sunda Islands. East of Java and west of Lombok, the province includes the island of Bali and a few smaller o ...
and
Sumatran tiger The Sumatran tiger is a population of ''Panthera tigris sondaica'' on the Indonesian island of Sumatra. It is the only surviving tiger population in the Sunda Islands, where the Bali tiger, Bali and Javan tigers are extinct. DNA sequencing, Sequ ...
s. The validity of several tiger subspecies was questioned in 1999 as most putative subspecies were distinguished on the basis of fur length and colouration, striping patterns and body size of specimens in natural history museum collections that are not necessarily representative for the entire population. It was proposed to recognise only two tiger subspecies as valid, namely ''P. t. tigris'' in mainland Asia and the smaller ''P. t. sondaica'' in the Greater Sunda Islands.Kitchener, A. (1999). "Tiger distribution, phenotypic variation and conservation issues" in This two-subspecies proposal was reaffirmed in 2015 through a comprehensive analysis of morphological, ecological and
mitochondrial DNA Mitochondrial DNA (mtDNA and mDNA) is the DNA located in the mitochondrion, mitochondria organelles in a eukaryotic cell that converts chemical energy from food into adenosine triphosphate (ATP). Mitochondrial DNA is a small portion of the D ...
(mtDNA) traits of all putative tiger subspecies. In 2017, the Cat Classification Task Force of the IUCN Cat Specialist Group revised
felid Felidae ( ) is the Family (biology), family of mammals in the Order (biology), order Carnivora colloquially referred to as cats. A member of this family is also called a felid ( ). The 41 extant taxon, extant Felidae species exhibit the gre ...
taxonomy in accordance with the 2015 two-subspecies proposal and recognised only ''P. t. tigris'' and ''P. t. sondaica''. Results of a 2018 whole-genome sequencing study of 32 samples from the six living putative subspecies—the Bengal, Malayan, Indochinese, South China, Siberian and Sumatran tiger—found them to be distinct and separate
clade In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach t ...
s. These results were corroborated in 2021 and 2023. A 2023 study found validity for all nine recent subspecies. The Cat Specialist Group states that "Given the varied interpretations of data, the ubspecifictaxonomy of this species is currently under review by the IUCN SSC Cat Specialist Group." The following tables are based on the
classification Classification is the activity of assigning objects to some pre-existing classes or categories. This is distinct from the task of establishing the classes themselves (for example through cluster analysis). Examples include diagnostic tests, identif ...
of the tiger as of 2005, and also reflect the classification recognised by the Cat Classification Task Force in 2017.


Evolution

The tiger shares the genus ''Panthera'' with the
lion The lion (''Panthera leo'') is a large Felidae, cat of the genus ''Panthera'', native to Sub-Saharan Africa and India. It has a muscular, broad-chested body (biology), body; a short, rounded head; round ears; and a dark, hairy tuft at the ...
, leopard, jaguar and snow leopard. Results of genetic analyses indicate that the tiger and snow leopard are sister species whose lineages split from each other between 2.70 and 3.70 million years ago. The tiger's whole genome sequencing shows repeated sequences that parallel those in other cat genomes. The fossil species '' Panthera palaeosinensis'' of early
Pleistocene The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fin ...
northern China was described as a possible tiger ancestor when it was discovered in 1924, but modern cladistics places it as basal to modern ''Panthera''. '' Panthera zdanskyi'' lived around the same time and place, and was suggested to be a sister species of the modern tiger when it was examined in 2014. However, as of 2023, at least two subsequent studies considered ''P. zdanskyi'' likely to be a
synonym A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are a ...
of ''P. palaeosinensis'', noting that its proposed differences from that species fell within the range of individual variation. The earliest appearance of the modern tiger species in the fossil record are jaw fragments from Lantion in China that are dated to the early Pleistocene. Middle- to late-Pleistocene tiger fossils have been found throughout China, Sumatra and Java. Prehistoric subspecies include '' Panthera tigris trinilensis'' and '' P. t. soloensis'' of Java and Sumatra and '' P. t. acutidens'' of China; late Pleistocene and early
Holocene The Holocene () is the current geologic time scale, geological epoch, beginning approximately 11,700 years ago. It follows the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene to ...
fossils of tigers have also been found in
Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...
and
Palawan Palawan (, ), officially the Province of Palawan (; ), is an archipelagic province of the Philippines that is located in the region of Mimaropa. It is the largest province in the country in terms of total area of . The capital and largest c ...
, Philippines.Kitchener, A. & Yamaguchi, N. (2009). "What is a Tiger? Biogeography, Morphology, and Taxonomy" in Fossil specimens of tigers have also been reported from the Middle-Late Pleistocene of Japan. Results of a phylogeographic study indicate that all living tigers have a common ancestor that lived between 108,000 and 72,000 years ago. Genetic studies suggest that the tiger population contracted around 115,000 years ago due to glaciation. Modern tiger populations originated from a refugium in Indochina and spread across Asia after the
Last Glacial Maximum The Last Glacial Maximum (LGM), also referred to as the Last Glacial Coldest Period, was the most recent time during the Last Glacial Period where ice sheets were at their greatest extent between 26,000 and 20,000 years ago. Ice sheets covered m ...
. As they colonised northeastern China, the ancestors of the South China tiger intermixed with a relict tiger population.


Hybrids

Tigers can interbreed with other ''Panthera'' cats and have done so in captivity. The liger is the offspring of a female tiger and a male lion and the
tigon The tigon is a hybrid offspring of a male tiger (''Panthera tigris'') and a female lion, or lioness (''Panthera leo''). The tiger has a typical felid morphology, with a muscular body, shortened legs, strong forelimbs with wide front paws, a large head and a tail that is about half the length of the rest of its body. It has five digits, including a
dewclaw A dewclaw is a digit – vestigial in some animals – on the foot of many mammals, birds, and reptiles (including some extinct orders, like certain theropods). It commonly grows higher on the leg than the rest of the foot, such that in di ...
, on the front feet and four on the back, all of which have retractile claws that are compact and curved, and can reach long. The ears are rounded and the eyes have a round pupil. The snout ends in a triangular, pink tip with small black dots, the number of which increase with age. The tiger's skull is robust, with a constricted front region, proportionally small, elliptical
orbits In celestial mechanics, an orbit (also known as orbital revolution) is the curved trajectory of an physical body, object such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of an satellite, artificia ...
, long nasal bones and a lengthened cranium with a large sagittal crest. It resembles a lion's skull, but differs from it in the concave or flattened underside of the lower jaw and in its longer nasals. The tiger has 30 fairly robust teeth and its somewhat curved canines are the longest in the cat family at . The tiger has a head-body length of with a tail and stands at the shoulder. The Siberian and Bengal tigers are the largest. Male Bengal tigers weigh , and females weigh ; island tigers are the smallest, likely due to insular dwarfism. Male Sumatran tigers weigh , and females weigh . The tiger is popularly thought to be the largest living felid species; but since tigers of the different subspecies and populations vary greatly in size and weight, the tiger's average size may be less than the lion's, while the largest tigers are bigger than their lion counterparts.


Coat

The tiger's coat usually has short hairs, reaching up to , though the hairs of the northern-living Siberian tiger can reach . Belly hairs tend to be longer than back hairs. The density of their fur is usually thin, though the Siberian tiger develops a particularly thick winter coat. The tiger has lines of fur around the face and long whiskers, especially in males. It has an orange colouration that varies from yellowish to reddish. White fur covers the underside, from head to tail, along with the inner surface of the legs and parts of the face. On the back of the ears, it has a prominent white spot, which is surrounded by black. The tiger is marked with distinctive black or dark brown stripes, which are uniquely patterned in each individual. The stripes are mostly vertical, but those on the limbs and forehead are horizontal. They are more concentrated towards the backside and those on the trunk may reach under the belly. The tips of stripes are generally sharp and some may split up or split and fuse again. Tail stripes are thick bands and a black tip marks the end. The tiger is one of only a few striped cat species. Stripes are advantageous for
camouflage Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the b ...
in vegetation with vertical patterns of light and shade, such as trees, reeds and tall grass.Miquelle, D. "Tiger" in This is supported by a Fourier analysis study showing that the striping patterns line up with their environment. The orange colour may also aid in concealment, as the tiger's prey is colour blind and possibly perceives the tiger as green and blended in with the vegetation.


Colour variations

The three colour variants of Bengal tigers – nearly stripeless snow-white, white and golden – are now virtually non-existent in the wild due to the reduction of wild tiger populations but continue in captive populations. The white tiger has a white background colour with sepia-brown stripes. The golden tiger is pale golden with reddish-brown stripes. The snow-white tiger is a morph with extremely faint stripes and a pale sepia-brown ringed tail. White and golden morphs are the result of an autosomal recessive trait with a white locus and a
wideband In communications, a system is wideband when the message bandwidth significantly exceeds the coherence bandwidth of the channel. Some communication links have such a high data rate that they are forced to use a wide bandwidth; other links ma ...
locus, respectively. The snow-white variation is caused by polygenes with both white and wideband loci. The breeding of white tigers is controversial, as they have no use for conservation. Only 0.001% of wild tigers have the genes for this colour morph and the overrepresentation of white tigers in captivity is the result of
inbreeding Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely genetic distance, related genetically. By analogy, the term is used in human reproduction, but more commonly refers to the genet ...
. Hence, their continued breeding will risk both
inbreeding depression Inbreeding depression is the reduced biological fitness caused by loss of genetic diversity as a consequence of inbreeding, the breeding of individuals closely related genetically. This loss of genetic diversity results from small population siz ...
and loss of genetic variability in captive tigers. Pseudo- melanistic tigers with thick, merged stripes have been recorded in Simlipal National Park and three Indian zoos; a population genetic analysis of Indian tiger samples revealed that this
phenotype In genetics, the phenotype () is the set of observable characteristics or traits of an organism. The term covers the organism's morphology (physical form and structure), its developmental processes, its biochemical and physiological propert ...
is caused by a
mutation In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. Viral genomes contain either DNA or RNA. Mutations result from errors during DNA or viral replication, ...
of a
transmembrane A transmembrane protein is a type of integral membrane protein that spans the entirety of the cell membrane. Many transmembrane proteins function as gateways to permit the transport of specific substances across the membrane. They frequently u ...
aminopeptidase gene. Around 37% of the Simlipal tiger population has this feature, which has been linked to genetic isolation.


Distribution and habitat

The tiger historically ranged from eastern Turkey, northern Iran and Afghanistan to Central Asia and from northern Pakistan through the
Indian subcontinent The Indian subcontinent is a physiographic region of Asia below the Himalayas which projects into the Indian Ocean between the Bay of Bengal to the east and the Arabian Sea to the west. It is now divided between Bangladesh, India, and Pakista ...
and Indochina to southeastern Siberia, Sumatra, Java and Bali. As of 2022, it inhabits less than 7% of its historical distribution and has a scattered range in the Indian subcontinent, the Indochinese Peninsula, Sumatra, northeastern China and the
Russian Far East The Russian Far East ( rus, Дальний Восток России, p=ˈdalʲnʲɪj vɐˈstok rɐˈsʲiɪ) is a region in North Asia. It is the easternmost part of Russia and the Asia, Asian continent, and is coextensive with the Far Easte ...
. As of 2020, India had the largest extent of global tiger habitat with , followed by Russia with . The tiger mainly lives in forest habitats and is highly adaptable.Sunquist, M. (2010). "What is a Tiger? Ecology and Behaviour" in Records in Central Asia indicate that it primarily inhabited Tugay riverine forests and hilly and lowland forests in the
Caucasus The Caucasus () or Caucasia (), is a region spanning Eastern Europe and Western Asia. It is situated between the Black Sea and the Caspian Sea, comprising parts of Southern Russia, Georgia, Armenia, and Azerbaijan. The Caucasus Mountains, i ...
. In the
Amur The Amur River () or Heilong River ( zh, s=黑龙江) is a perennial river in Northeast Asia, forming the natural border between the Russian Far East and Northeast China (historically the Outer Manchuria, Outer and Inner Manchuria). The Amur ...
- Ussuri region of Russia and China, it inhabits Korean pine and
temperate broadleaf and mixed forest Temperate broadleaf and mixed forest is a temperate climate terrestrial habitat type defined by the World Wide Fund for Nature, with broadleaf tree ecoregions, and with conifer and broadleaf tree mixed coniferous forest ecoregions. Thes ...
s;
riparian forest A riparian forest or riparian woodland is a forested or wooded area of land adjacent to a body of water such as a river, stream, pond, lake, marshland, estuary, canal, Sink (geography), sink, or reservoir. Due to the broad nature of the definitio ...
s serve as dispersal corridors, providing food and water for both tigers and
ungulate Ungulates ( ) are members of the diverse clade Euungulata ("true ungulates"), which primarily consists of large mammals with Hoof, hooves. Once part of the clade "Ungulata" along with the clade Paenungulata, "Ungulata" has since been determined ...
s.Miquelle, D. G.; Smirnov, E. N.; Merrill, T. W.; Myslenkov, A. E.; Quigley, H.; Hornocker, M. G. & Schleyer, B. (1999). "Hierarchical spatial analysis of Amur tiger relationships to habitat and prey" in On the Indian subcontinent, it inhabits mainly
tropical and subtropical moist broadleaf forests Tropical and subtropical moist broadleaf forests (TSMF), also known as tropical moist forest, is a subtropical and tropical forest habitat type defined by the World Wide Fund for Nature (WWF). Description TSMF is generally found in la ...
, temperate broadleaf and mixed forests, tropical moist evergreen forests, tropical dry forests, alluvial plains and the mangrove forests of the
Sundarbans Sundarbans (; pronounced ) is a mangrove forest area in the Ganges Delta formed by the confluence of the Ganges, Brahmaputra and Meghna Rivers in the Bay of Bengal. It spans the area from the Hooghly River in India's state of West Bengal ...
.Wikramanayake, E. D.; Dinerstein, E.; Robinson, J. G.; Karanth, K. U.; Rabinowitz, A.; Olson, D.; Mathew, T.; Hedao, P.; Connor, M.; Hemley, G. & Bolze, D. (1999). "Where can tigers live in the future? A framework for identifying high-priority areas for the conservation of tigers in the wild" in In the
Eastern Himalaya ] The Eastern Himalayas extend from eastern Nepal across Northeast India, Bhutan, the Tibet Autonomous Region to Yunnan in China and northern Myanmar. The climate of this region is influenced by the monsoon of South Asia from June to September. It ...
s, it was documented in
temperate forest A temperate forest is a forest found between the tropical and boreal regions, located in the temperate zone. It is the second largest terrestrial biome, covering 25% of the world's forest area, only behind the boreal forest, which covers about 3 ...
up to an elevation of in Bhutan, of in the Mishmi Hills and of in Mêdog County, southeastern Tibet. In Thailand, it lives in
deciduous In the fields of horticulture and botany, the term deciduous () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed Leaf, leaves, usually in the autumn; to the shedding of petals, aft ...
and
evergreen In botany, an evergreen is a plant which has Leaf, foliage that remains green and functional throughout the year. This contrasts with deciduous plants, which lose their foliage completely during the winter or dry season. Consisting of many diffe ...
forests. In Sumatra, it inhabits lowland peat swamp forests and rugged
montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures lapse rate, fall as elevation increases, causing the ecosystem to stratify. This stratification is ...
s.


Population density

Camera trapping during 2010–2015 in the deciduous and subtropical pine forest of Jim Corbett National Park, northern India revealed a stable tiger
population density Population density (in agriculture: Standing stock (disambiguation), standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geog ...
of 12–17 individuals per in an area of . In northern Myanmar, the population density in a sampled area of roughly in a mosaic of tropical broadleaf forest and grassland was estimated to be 0.21–0.44 tigers per as of 2009. Population density in mixed deciduous and semi-evergreen forests of Thailand's Huai Kha Khaeng Wildlife Sanctuary was estimated at 2.01 tigers per ; during the 1970s and 1980s,
logging Logging is the process of cutting, processing, and moving trees to a location for transport. It may include skidder, skidding, on-site processing, and loading of trees or trunk (botany), logs onto logging truck, trucksMae Wong and
Khlong Lan National Park Khlong Lan National Park (Thai alphabet, Thai อุทยานแห่งชาติคลองลาน) is a List of national parks of Thailand, national park in Thailand. Description Khlong Lan National Park is situated in the Dawna Ran ...
s, where population density was much lower, estimated at only 0.359 tigers per as of 2016. Population density in dipterocarp and montane forests in northern Malaysia was estimated at 1.47–2.43 adult tigers per in Royal Belum State Park, but 0.3–0.92 adult tigers per in the unprotected selectively logged Temengor Forest Reserve.


Behaviour and ecology

Camera trap data show that tigers in Chitwan National Park avoided locations frequented by people and were more active at night than during day. In Sundarbans National Park, six radio-collared tigers were most active from dawn to early morning and reached their zenith around 7:00 o'clock in the morning. A three-year-long camera trap survey in Shuklaphanta National Park revealed that tigers were most active from dusk until midnight. In northeastern China, tigers were
crepuscular In zoology, a crepuscular animal is one that is active primarily during the twilight period, being matutinal (active during dawn), vespertine (biology), vespertine/vespertinal (active during dusk), or both. This is distinguished from diurnalit ...
and active at night with activity peaking at dawn and dusk; they were largely active at the same time as their prey. The tiger is a powerful swimmer and easily transverses rivers as wide as ; it immerses in water, particularly on hot days. In general, it is less capable of climbing trees than many other cats due to its size, but cubs under 16 months old may routinely do so. An adult was recorded climbing up a smooth pipal tree.


Social spacing

Adult tigers lead largely solitary lives within
home range A home range is the area in which an animal lives and moves on a periodic basis. It is related to the concept of an animal's territory which is the area that is actively defended. The concept of a home range was introduced by W. H. Burt in 1943. ...
s or territories, the size of which mainly depends on prey abundance, geographic area and sex of the individual. Males and females defend their home ranges from those of the same sex and the home range of a male encompasses that of multiple females. Two females in the
Sundarbans Sundarbans (; pronounced ) is a mangrove forest area in the Ganges Delta formed by the confluence of the Ganges, Brahmaputra and Meghna Rivers in the Bay of Bengal. It spans the area from the Hooghly River in India's state of West Bengal ...
had home ranges of . In Panna Tiger Reserve, the home ranges of five reintroduced females varied from in winter to in summer and to during the
monsoon A monsoon () is traditionally a seasonal reversing wind accompanied by corresponding changes in precipitation but is now used to describe seasonal changes in Atmosphere of Earth, atmospheric circulation and precipitation associated with annu ...
; three males had large home ranges in winter, in summer and during monsoon seasons. In Sikhote-Alin Biosphere Reserve, 14 females had home ranges and five resident males of that overlapped with those of up to five females. When tigresses in the same reserve had cubs of up to four months of age, they reduced their home ranges to stay near their young and steadily enlarged them until their offspring were 13–18 months old. The tiger is a long-ranging species and individuals disperse over distances of up to to reach tiger populations in other areas. Young tigresses establish their first home ranges close to their mothers' while males migrate further than their female counterparts. Four radio-collared females in Chitwan dispersed between and 10 males between . A subadult male lives as a transient in another male's home range until he is older and strong enough to challenge the resident male. Tigers mark their home ranges by spraying urine on vegetation and rocks, clawing or
scent rubbing Scent rubbing is a behavior where a mammal rubs its body against an object in their environment, sometimes in ones covered with strongly odored substances. It is typically shown in carnivores, although many mammals exhibit this behavior. Lowering ...
trees and marking trails with
faeces Feces (also known as faeces American and British English spelling differences#ae and oe, or fæces; : faex) are the solid or semi-solid remains of food that was not digested in the small intestine, and has been broken down by bacteria in the ...
, anal gland secretions and ground scrapings. Scent markings also allow an individual to pick up information on another's identity. Unclaimed home ranges, particularly those that belonged to a deceased individual, can be taken over in days or weeks. Male tigers are generally less tolerant of other males within their home ranges than females are of other females. Disputes are usually solved by intimidation rather than fighting. Once dominance has been established, a male may tolerate a subordinate within his range, as long as they do not come near him. The most serious disputes tend to occur between two males competing for a female in oestrus. Though tigers mostly live alone, relationships between individuals can be complex. Tigers are particularly social at kills and a male tiger will sometimes share a carcass with the females and cubs within this home range and unlike male lions, will allow them to feed on the kill before he is finished with it. However, a female is more tense when encountering another female at a kill.


Communication

During friendly encounters and bonding, tigers rub against each other's bodies. Facial expressions include the "defence threat", which involves a wrinkled face, bared teeth, pulled-back ears and widened pupils. Both males and females show a flehmen response, a characteristic curled-lip grimace, when smelling urine markings. Males also use the flehmen to detect the markings made by tigresses in oestrus. Tigers will move their ears around to display the white spots, particularly during aggressive encounters and between mothers and cubs. They also use their tails to signal their mood. To show cordiality, the tail sticks up and sways slowly, while an apprehensive tiger lowers its tail or wags it side-to-side. When calm, the tail hangs low. Tigers are normally silent but can produce numerous vocalisations. They roar to signal their presence to other individuals over long distances. This vocalisation is forced through an open mouth as it closes and can be heard away. They roar multiple times in a row and others respond in kind. Tigers also roar during mating and a mother will roar to call her cubs to her. When tense, tigers moan, a sound similar to a roar but softer and made when the mouth is at least partially closed. Moaning can be heard away. Aggressive encounters involve
growling Growling is a low, guttural Animal communication, vocalization produced by animals as an aggression, aggressive warning but can also be found in other contexts such as playful behaviors or mating. Different animals will use growling in specific ...
, snarling and hissing. An explosive "coughing roar" or "coughing snarl" is emitted through an open mouth and exposed teeth. In friendlier situations, tigers prusten, a soft, low-frequency snorting sound similar to purring in smaller cats. Tiger mothers communicate with their cubs by grunting, while cubs call back with miaows. When startled, they "woof". They produce a deer-like "pok" sound for unknown reasons, but most often at kills.


Hunting and diet

The tiger is a
carnivore A carnivore , or meat-eater (Latin, ''caro'', genitive ''carnis'', meaning meat or "flesh" and ''vorare'' meaning "to devour"), is an animal or plant Plants are the eukaryotes that form the Kingdom (biology), kingdom Plantae; they ar ...
and an apex predator. Abundance and body weight of prey species are assumed to be the main criteria for the tiger's prey selection, both inside and outside protected areas. It feeds mainly on large and medium-sized ungulates, with a preference for sambar deer, Manchurian wapiti, barasingha, gaur and
wild boar The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a Suidae, suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The speci ...
. It also preys opportunistically on smaller species like monkeys, peafowl and other ground-based birds,
porcupine Porcupines are large rodents with coats of sharp Spine (zoology), spines, or quills, that protect them against predation. The term covers two Family (biology), families of animals: the Old World porcupines of the family Hystricidae, and the New ...
s and fish. Occasional attacks on
Asian elephant The Asian elephant (''Elephas maximus''), also known as the Asiatic elephant, is the only living ''Elephas'' species. It is the largest living land animal in Asia and the second largest living Elephantidae, elephantid in the world. It is char ...
s and Indian rhinoceroses have also been reported. More often, tigers take the more vulnerable calves. They sometimes prey on livestock and dogs in close proximity to settlements. Tigers occasionally consume vegetation, fruit and minerals for dietary fibre and supplements. Tigers learn to hunt from their mothers, though the ability to hunt may be partially inborn. Depending on the size of the prey, they typically kill weekly though mothers must kill more often. Families hunt together when cubs are old enough. They search for prey using vision and hearing. A tiger will also wait at a watering hole for prey to come by, particularly during hot summer days. It is an ambush predator and when approaching potential prey, it crouches with the head lowered and hides in foliage. It switches between creeping forward and staying still. A tiger may even doze off and can stay in the same spot for as long as a day, waiting for prey and launch an attack when the prey is close enough, usually within . If the prey spots it before then, the cat does not pursue further. A tiger can sprint and leap ; it is not a long-distance runner and gives up a chase if prey outpaces it over a certain distance. The tiger attacks from behind or at the sides and tries to knock the target off balance. It latches onto prey with its forelimbs, twisting and turning during the struggle and tries to pull it to the ground. The tiger generally applies a bite to the throat until its victim dies of strangulation. It has an average bite force at the canine tips of 1234.3 newtons. Holding onto the throat puts the cat out of reach of horns, antlers, tusks and hooves. Tigers are adaptable killers and may use other methods, including ripping the throat or breaking the neck. Large prey may be disabled by a bite to the back of the hock, severing the tendon. Swipes from the large paws are capable of stunning or breaking the skull of a
water buffalo The water buffalo (''Bubalus bubalis''), also called domestic water buffalo, Asian water buffalo and Asiatic water buffalo, is a large bovid originating in the Indian subcontinent and Southeast Asia. Today, it is also kept in Italy, the Balkans ...
. They kill small prey with a bite to the back of the neck or head. Estimates of the success rate for hunting tigers range from a low of 5% to a high of 50%. They are sometimes killed or injured by large or dangerous prey like gaur, buffalo and boar. Tigers typically move kills to a private, usually vegetated spot no further than , though they have been recorded dragging them . They are strong enough to drag the carcass of a fully grown buffalo for some distance. They rest for a while before eating and can consume as much as of meat in one session, but feed on a carcass for several days, leaving little for scavengers.


Competitors

In much of their range, tigers share habitat with leopards and dholes. They typically dominate both of them, though with dholes it depends on their pack size. Interactions between the three predators involve chasing, stealing kills and direct killing. Large dhole packs may kill tigers. Tigers, leopards and dholes coexist by hunting different sized prey. In Nagarhole National Park, the average weight for tiger kills was found to be , compared to for leopards and for dholes. In Kui Buri National Park, following a reduction in prey numbers, tigers continued to kill favoured prey while leopards and dholes increased their consumption of small prey. Both leopards and dholes can live successfully in tiger habitat when there is abundant food and vegetation cover. Otherwise, they appear to be less common where tigers are numerous. The recovery of the tiger population in Rajaji National Park during the 2000s led to a reduction in leopard population densities. Similarly, at two sites in central India the size of dhole packs was negatively correlated with tiger densities. Leopard and dhole distribution in Kui Buri correlated with both prey access and tiger scarcity. In
Jigme Dorji National Park Jigme Dorji National Park (JDNP), named after the late Jigme Dorji Wangchuck, is the second-largest National Park of Bhutan. History It was established in 1974 and stretches over an area of 4316 km2, thereby spanning all three climate z ...
, tigers were found to inhabit the deeper parts of forests while the smaller predators were pushed closer to the fringes.


Reproduction and life cycle

The tiger generally
mates Mates is an English surname, and may refer to: * Mates (born 1964), British newsreader and journalist * Michael Mates (born 1934), British politician * Frederick S. Mates, founded the Mates Investment Fund in 1967 that crashed in the bear market ...
all year round, particularly between November and April. A tigress is in oestrus for three to six days at a time, separated by three to nine week intervals. A resident male mates with all the females within his home range, who signal their receptiveness by roaring and marking. Younger, transient males are also attracted, leading to a fight in which the more dominant, resident male drives the usurper off. During courtship, the male is cautious with the female as he waits for her to show signs she is ready to mate. She signals to him by positioning herself in lordosis with her tail to the side. Copulation typically lasts no more than 20 seconds, with the male biting the female by the scruff of her neck. After it is finished, the male quickly pulls away as the female may turn and slap him. Tiger pairs may stay together for up to four days and mate multiple times.
Gestation Gestation is the period of development during the carrying of an embryo, and later fetus, inside viviparous animals (the embryo develops within the parent). It is typical for mammals, but also occurs for some non-mammals. Mammals during pregn ...
lasts around or over three months. A tigress gives birth in a secluded location, be it in dense vegetation, in a cave or under a rocky shelter. Litters consist of as many as seven cubs, but two or three are more typical. Newborn cubs weigh and are blind and
altricial Precocial species in birds and mammals are those in which the young are relatively mature and mobile from the moment of birth or hatching. They are normally nidifugous, meaning that they leave the nest shortly after birth or hatching. Altricial ...
. The mother licks and cleans her cubs, suckles them and viciously defends them from any potential threat. Cubs open their eyes at the age of three to 14 days and their vision becomes clear after a few more weeks. They can leave the denning site after two months and around the same time they start eating meat. The mother only leaves them alone to hunt and even then she does not travel far. When she suspects an area is no longer safe, she moves her cubs to a new spot, transporting them one by one by grabbing them by the scruff of the neck with her mouth. A tigress in Sikhote-Alin Biosphere Reserve maximised the time spent with her cubs by reducing her home range, killing larger prey and returning to her den more rapidly than without cubs; when the cubs started to eat meat, she took them to kill sites, thereby optimising their protection and access to food. In the same reserve, one of 21 cubs died in over eight years of monitoring and mortality did not differ between male and female juveniles. Tiger monitoring over six years in Ranthambore Tiger Reserve indicated an average annual survival rate of around 85 percent for 74 male and female cubs; survival rate increased to 97 percent for both males and female juveniles of one to two years of age. Causes of cub mortality include predators, floods, fires, death of the mother and fatal injuries. After around two months, the cubs are able to follow their mother. They still hide in vegetation when she goes hunting. Young bond through play fighting and practice stalking. A hierarchy develops in the litter, with the biggest cub, often a male, being the most dominant and the first to eat its fill at a kill. Around the age of six months, cubs are fully weaned and have more freedom to explore their environment. Between eight and ten months, they accompany their mother on hunts. A cub can make a kill as early as 11 months and reach independence as a juvenile of 18 to 24 months of age; males become independent earlier than females. Radio-collared tigers in Chitwan started leaving their natal areas at the age of 19 months. Young females are sexually mature at three to four years, whereas males are at four to five years. Generation length of the tiger is about 7–10 years. Wild Bengal tigers live 12–15 years. Data from the International Tiger Studbook 1938–2018 indicate that captive tigers lived up to 19 years. The father does not play a role in raising the young, but he encounters and interacts with them. The resident male appears to visit the female–cub families within his home range. They socialise and even share kills. One male was recorded looking after cubs whose mother had died. By defending his home range, the male protects the females and cubs from other males. When a new male takes over, dependent cubs are at risk of
infanticide Infanticide (or infant homicide) is the intentional killing of infants or offspring. Infanticide was a widespread practice throughout human history that was mainly used to dispose of unwanted children, its main purpose being the prevention of re ...
as the male attempts to sire his own young with the females. A seven-year long study in Chitwan National Park revealed that 12 of 56 detected cubs and juveniles were killed by new males taking over home ranges.


Health and diseases

Tigers are recorded as hosts for various parasites including tapeworms like '' Diphyllobothrium erinacei'', '' Taenia pisiformis'' in India and
nematode The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitic. Parasitic worms (h ...
s like '' Toxocara'' species in India and '' Physaloptera preputialis'', '' Dirofilaria ursi'' and '' Uiteinarta'' species in Siberia. Canine distemper is known to occur in Siberian tigers. A morbillivirus infection was the likely cause of death of a tigress in the Russian Far East that was also tested positive for feline panleukopenia and feline coronavirus. Blood samples from 11 adult tigers in Nepal showed
antibodies An antibody (Ab) or immunoglobulin (Ig) is a large, Y-shaped protein belonging to the immunoglobulin superfamily which is used by the immune system to identify and neutralize antigens such as bacteria and viruses, including those that caus ...
for canine parvovirus-2, feline herpesvirus, feline coronavirus,
leptospirosis Leptospirosis is a blood infection caused by the bacterium ''Leptospira'' that can infect humans, dogs, rodents and many other wild and domesticated animals. Signs and symptoms can range from none to mild (headaches, Myalgia, muscle pains, a ...
and '' Toxoplasma gondii''.


Threats

The tiger has been listed as
Endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, inv ...
on the
IUCN Red List The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological ...
since 1986 and the global tiger population is thought to have continuously declined from an estimated population of 5,000–8,262 tigers in the late 1990s to 3,726–5,578 individuals estimated as of 2022. During 2001–2020, landscapes where tigers live declined from to .
Habitat destruction Habitat destruction (also termed habitat loss or habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease ...
,
habitat fragmentation Habitat fragmentation describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), causing population fragmentation and ecosystem decay. Causes of habitat fragmentation include geological proces ...
and
poaching Poaching is the illegal hunting or capturing of wild animals, usually associated with land use rights. Poaching was once performed by impoverished peasants for subsistence purposes and to supplement meager diets. It was set against the huntin ...
for fur and body parts are the major threats that contributed to the decrease of tiger populations in all range countries. Protected areas in central India are highly fragmented due to linear infrastructure like roads, railway lines,
transmission line In electrical engineering, a transmission line is a specialized cable or other structure designed to conduct electromagnetic waves in a contained manner. The term applies when the conductors are long enough that the wave nature of the transmis ...
s,
irrigation Irrigation (also referred to as watering of plants) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has bee ...
channels and
mining Mining is the Resource extraction, extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agriculture, agricultural processes, or feasib ...
activities in their vicinity. In the
Tanintharyi Region Tanintharyi Region (, ; Mon: or ; formerly Tenasserim Division and Tanintharyi Division) is a region of Myanmar, covering the long narrow southern part of the country on the northern Malay Peninsula, reaching to the Kra Isthmus. It borders ...
of southern Myanmar,
deforestation Deforestation or forest clearance is the removal and destruction of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. Ab ...
coupled with mining activities and high hunting pressure threatens the tiger population. In Thailand, nine of 15 protected areas hosting tigers are isolated and fragmented, offering a low probability for dispersal between them; four of these have not harboured tigers since about 2013. In Peninsular Malaysia, of tiger habitat was cleared during 1988–2012, most of it for industrial
plantation Plantations are farms specializing in cash crops, usually mainly planting a single crop, with perhaps ancillary areas for vegetables for eating and so on. Plantations, centered on a plantation house, grow crops including cotton, cannabis, tob ...
s. Large-scale land acquisitions of about for commercial
agriculture Agriculture encompasses crop and livestock production, aquaculture, and forestry for food and non-food products. Agriculture was a key factor in the rise of sedentary human civilization, whereby farming of domesticated species created ...
and timber extraction in Cambodia contributed to the fragmentation of potential tiger habitat, especially in the Eastern Plains.
Inbreeding depression Inbreeding depression is the reduced biological fitness caused by loss of genetic diversity as a consequence of inbreeding, the breeding of individuals closely related genetically. This loss of genetic diversity results from small population siz ...
coupled with habitat destruction, insufficient prey resources and poaching is a threat to the small and isolated tiger population in the Changbai Mountains along the China–Russia border. In China, tigers became the target of large-scale 'anti-pest' campaigns in the early 1950s, where suitable habitats were fragmented following deforestation and resettlement of people to rural areas, who hunted tigers and prey species. Though tiger hunting was prohibited in 1977, the population continued to decline and is considered extinct in South China since 2001. Tiger populations in India have been targeted by poachers since the 1990s and were extirpated in two tiger reserves in 2005 and 2009. Between March 2017 and January 2020, 630 activities of hunters using snares, drift nets, hunting platforms and hunting dogs were discovered in a reserve forest of about in southern Myanmar. Nam Et-Phou Louey National Park was considered the last important site for the tiger in Laos, but it has not been recorded there at least since 2013; this population likely fell victim to indiscriminate snaring. Anti-poaching units in Sumatra's Kerinci Seblat landscape removed 362 tiger snare traps and seized 91 tiger skins during 2005–2016; annual poaching rates increased with rising skin prices. Poaching is also the main threat to the tiger population in far eastern Russia, where
logging Logging is the process of cutting, processing, and moving trees to a location for transport. It may include skidder, skidding, on-site processing, and loading of trees or trunk (botany), logs onto logging truck, trucksconfiscated in 2,205 seizures in 28 countries; seizures encompassed 665 live and 654 dead individuals, 1,313 whole tiger skins, 16,214 body parts like bones, teeth, paws, claws, whiskers and of meat; 759 seizures in India encompassed body parts of 893 tigers; and 403 seizures in Thailand involved mostly captive-bred tigers. Seizures in Nepal between January 2011 and December 2015 obtained 585 pieces of tiger body parts and two whole carcasses in 19 districts. Seizure data from India during 2001–2021 indicate that tiger skins were the most often traded body parts, followed by claws, bones and teeth; trafficking routes mainly passed through the states of Maharashtra, Karnataka, Tamil Nadu and Assam. A total of 292 illegal tiger parts were confiscated at US ports of entry from personal baggage, air cargo and mail between 2003 and 2012. Demand for tiger parts for use in
traditional Chinese medicine Traditional Chinese medicine (TCM) is an alternative medicine, alternative medical practice drawn from traditional medicine in China. A large share of its claims are pseudoscientific, with the majority of treatments having no robust evidence ...
has also been cited as a major threat to tiger populations. Interviews with local people in the Bangladeshi Sundarbans revealed that they kill tigers for local consumption and trade of skins, bones and meat, in retaliation for attacks by tigers and for excitement. Tiger body parts like skins, bones, teeth and hair are consumed locally by wealthy Bangladeshis and are illegally trafficked from Bangladesh to 15 countries including India, China, Malaysia, Korea, Vietnam, Cambodia, Japan and the United Kingdom via land borders, airports and seaports. Tiger bone glue is the prevailing tiger product purchased for medicinal purposes in
Hanoi Hanoi ( ; ; ) is the Capital city, capital and List of cities in Vietnam, second-most populous city of Vietnam. The name "Hanoi" translates to "inside the river" (Hanoi is bordered by the Red River (Asia), Red and Black River (Asia), Black Riv ...
and
Ho Chi Minh City Ho Chi Minh City (HCMC) ('','' TP.HCM; ), commonly known as Saigon (; ), is the most populous city in Vietnam with a population of around 14 million in 2025. The city's geography is defined by rivers and canals, of which the largest is Saigo ...
. "Tiger farm" facilities in China and Southeast Asia breed tigers for their parts, but these appear to make the threat to wild populations worse by increasing the demand for tiger products. Local people killing tigers in retaliation for attacking and preying on livestock is a threat in several tiger range countries, as this consequence of human–wildlife conflict also contributes to the decline of the population.


Conservation

Internationally, the tiger is protected under CITES Appendix I, banning trade of live tigers and their body parts. In Russia, hunting the tiger has been banned since 1952. In Bhutan, it has been protected since 1969 and enlisted as totally protected since 1995. Since 1972, it has been afforded the highest protection level under India's Wild Life (Protection) Act, 1972. In Nepal and Bangladesh, it has been protected since 1973. Since 1976, it has been totally protected under Malaysia's Protection of Wild Life Act, and the country's Wildlife Conservation Act enacted in 2010 increased punishments for wildlife-related crimes. In Indonesia, it has been protected since 1990. In China, the trade in tiger body parts was banned in 1993. The Thai Wildlife Preservation and Protection Act was enacted in 2019 to combat poaching and trading of body parts. In 1973, the National Tiger Conservation Authority and Project Tiger were founded in India to gain public support for tiger conservation. Since then, 53 tiger reserves covering an area of have been established in the country up to 2022. These efforts contributed to the recovery of India's tiger population between 2006 and 2018 so that it occurs in an area of about . Myanmar's national tiger conservation strategy developed in 2003 comprises management tasks such as restoration of degraded habitats, increasing the extent of protected areas and wildlife corridors, protecting tiger prey species, thwarting tiger killing and illegal trade of its body parts and promoting public awareness through wildlife education programmes. Bhutan's first Tiger Action Plan implemented during 2006–2015 revolved around habitat conservation, human–wildlife conflict management, education and awareness; the second Action Plan aimed at increasing the country's tiger population by 20% until 2023 compared to 2015. In 2009, the Bangladesh Tiger Action Plan was initiated to stabilise the country's tiger population, maintain habitat and a sufficient prey base, improve law enforcement and foster cooperation between governmental agencies responsible for tiger conservation. The Thailand Tiger Action Plan
ratified Ratification is a principal's legal confirmation of an act of its agent. In international law, ratification is the process by which a state declares its consent to be bound to a treaty. In the case of bilateral treaties, ratification is usuall ...
in 2010 envisioned increasing the country's tiger populations by 50% in the Western Forest Complex and Dong Phayayen–Khao Yai Forest Complex and reestablish populations in three potential landscapes until 2022. The Indonesian National Tiger Recovery Program ratified in 2010 aimed at increasing the Sumatran tiger population by 2022. The third strategic and action plan for the conservation of the Sumatran tiger for the years 2020–2030 revolves around strengthening management of small tiger population units of less than 20 mature individuals and connectivity between 13 forest patches in
North Sumatra North Sumatra () is a Provinces of Indonesia, province of Indonesia located in the northern part of the island of Sumatra. Its capital and largest city is Medan on the east coast of the island. It borders Aceh to the northwest, Riau to the sou ...
and
West Sumatra West Sumatra () is a Provinces of Indonesia, province of Indonesia. It is on the west coast of the island of Sumatra and includes the Mentawai Islands off that coast. West Sumatra borders the Indian Ocean to the west, as well as the provinces of ...
provinces. Increases in anti-poaching patrol efforts in four Russian protected areas during 2011–2014 contributed to reducing poaching, stabilising the tiger population and improving protection of ungulate populations. Poaching and trafficking were declared to be moderate and serious crimes in 2019. Anti-poaching operations were also established in Nepal in 2010, with increased cooperation and intelligence sharing between agencies. These policies have led to many years of "zero poaching" and the country's tiger population has doubled in a decade. Anti-poaching patrols in the large core area of Taman Negara lead to a decrease of poaching frequency from 34 detected incidents in 2015–2016 to 20 incidents during 2018–2019; the arrest of seven poaching teams and removal of snares facilitated the survival of three resident female tigers and at least 11 cubs. Army and police officers are deployed for patrolling together with staff of protected areas in Malaysia.
Wildlife corridor A wildlife corridor, also known as a habitat corridor, or green corridor, is a designated area habitat (ecology), that connects wildlife populations that have been separated by human activities or structures, such as development, roads, or land ...
s are important conservation measures as they facilitate tiger populations to connect between protected areas; tigers use at least nine corridors that were established in the Terai Arc Landscape and Sivalik Hills in both Nepal and India. Corridors in forested areas with low human encroachment are highly suitable. In West Sumatra, 12 wildlife corridors were identified as high priority for mitigating human–wildlife conflicts. In 2019, China and Russia signed a memorandum of understanding for transboundary cooperation between two protected areas, Northeast China Tiger and Leopard National Park and Land of the Leopard National Park, that includes the creation of wildlife corridors and bilateral monitoring and patrolling along the Sino-Russian border. Rescued and rehabilitated problem tigers and
orphan An orphan is a child whose parents have died, are unknown, or have permanently abandoned them. It can also refer to a child who has lost only one parent, as the Hebrew language, Hebrew translation, for example, is "fatherless". In some languages ...
ed tiger cubs have been released into the wild and monitored in India, Sumatra and Russia. In Kazakhstan, habitat restoration and reintroduction of prey species in Ile-Balkash Nature Reserve have progressed and tiger reintroduction is planned for 2025. Reintroduction of tigers is considered possible in eastern Cambodia, once management of protected areas is improved and forest loss stabilized. South China tigers are kept and bred in Chinese zoos, with plans to reintroduce their offspring into remote protected areas. Coordinated breeding programs among zoos have led to enough genetic diversity in tigers to act as "insurance against extinction in the wild".


Relationship with humans


Hunting

Tigers have been hunted by humans for millennia, as indicated by a painting on the Bhimbetka rock shelters in India that is dated to 5,000–6,000 years ago. They were hunted throughout their range in Asia, chased on horseback, elephant-back or even with sled dogs and killed with spears and later firearms. Such hunts were conducted both by Asian governments and empires like the
Mughal Empire The Mughal Empire was an Early modern period, early modern empire in South Asia. At its peak, the empire stretched from the outer fringes of the Indus River Basin in the west, northern Afghanistan in the northwest, and Kashmir in the north, to ...
, as well as European colonists. Tigers were often hunted as trophies and because of their perceived danger. An estimated 80,000 tigers were killed between 1875 and 1925.


Attacks

In most areas, tigers avoid humans, but attacks are a risk wherever people coexist with them. Dangerous encounters are more likely to occur in edge habitats between wild and agricultural areas.Nyhus, P. J. & Tilson, R. (2010). "''Panthera tigris'' vs ''Homo sapiens'': Conflict, coexistence, or extinction?" in Most attacks on humans are defensive, including protection of young; however, tigers do sometimes see people as prey. Man-eating tigers tend to be old and disabled. Tigers driven from their home ranges are also at risk of turning to man-eating. At the beginning of the 20th century, the Champawat Tiger was responsible for over 430 human deaths in Nepal and India before she was shot by Jim Corbett. This tigress suffered from broken teeth and was unable to kill normal prey. Modern authors speculate that sustaining on meagre human flesh forced the cat to kill more and more. Tiger attacks were particularly high in Singapore during the mid-19th century, when plantations expanded into the tiger's habitat. In the 1840s, the number of deaths in the area ranged from 200 to 300 annually. Tiger attacks in the Sundarbans caused 1,396 human deaths in the period 1935–2006 according to official records of the Bangladesh Forest Department. Victims of these attacks are local villagers who enter the tiger's domain to collect resources like wood and honey. Fishermen have been particularly common targets. Methods to counter tiger attacks have included face masks worn backwards, protective clothes, sticks and carefully stationed electric dummies.


Captivity

Tigers have been kept in captivity since ancient times. In
ancient Rome In modern historiography, ancient Rome is the Roman people, Roman civilisation from the founding of Rome, founding of the Italian city of Rome in the 8th century BC to the Fall of the Western Roman Empire, collapse of the Western Roman Em ...
, tigers were displayed in
amphitheatre An amphitheatre (American English, U.S. English: amphitheater) is an open-air venue used for entertainment, performances, and sports. The term derives from the ancient Greek ('), from ('), meaning "on both sides" or "around" and ('), meani ...
s; they were slaughtered in venatio hunts and used to kill criminals. The Mongol ruler Kublai Khan is reported to have kept tigers in the 13th century. Starting in the
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of global history. It began with the fall of the Western Roman Empire and ...
, tigers were being kept in European
menagerie A menagerie is a collection of captive animals, frequently exotic, kept for display; or the place where such a collection is kept, a precursor to the modern zoo or zoological garden. The term was first used in 17th-century France, referring to ...
s. Tigers and other exotic animals were mainly used for the entertainment of elites but from the 19th century onward, they were exhibited more to the public. Tigers were particularly big attractions and their captive population soared. In 2020, there were over 8,000 captive tigers in Asia, over 5,000 in the US and no less than 850 in Europe. There are more tigers in captivity than in the wild. Captive tigers may display stereotypical behaviours such as pacing or inactivity. Modern zoos are able to reduce such behaviours with exhibits designed so the animals can move between separate but connected enclosures. Enrichment items are also important for the cat's welfare and the stimulation of its natural behaviours. Tigers have played prominent roles in
circus A circus is a company of performers who put on diverse entertainment shows that may include clowns, acrobats, trained animals, trapeze acts, musicians, dancers, hoopers, tightrope walkers, jugglers, magicians, ventriloquists, and unicy ...
es and other live performances.
Ringling Bros The Ringling Bros. and Barnum & Bailey Circus, also known as the Ringling Bros. Circus, Ringling Bros., the Barnum & Bailey Circus, Barnum & Bailey, or simply Ringling, is an American traveling circus company billed as The Greatest Show on Earth ...
included many tiger tamers in the 20th century including Mabel Stark, who became a big draw and had a long career. She was well known for being able to control the tigers despite being a small woman; using "manly" tools like whips and guns. Another trainer was Clyde Beatty, who used chairs, whips and guns to provoke tigers and other beasts into acting fierce and allowed him to appear courageous. He would perform with as many as 40 tigers and lions in one act. From the 1960s onward, trainers like Gunther Gebel-Williams would use gentler methods to control their animals. Sara Houcke was dubbed "the Tiger Whisperer" as she trained the cats to obey her by whispering to them. Siegfried & Roy became famous for performing with white tigers in
Las Vegas Las Vegas, colloquially referred to as Vegas, is the most populous city in the U.S. state of Nevada and the county seat of Clark County. The Las Vegas Valley metropolitan area is the largest within the greater Mojave Desert, and second-l ...
. The act ended in 2003 when a tiger attacked Roy during a performance. In 2009, tigers were the most traded circus animals. The use of tigers and other animals in shows eventually declined in many countries due to pressure from
animal rights Animal rights is the philosophy according to which many or all Animal consciousness, sentient animals have Moral patienthood, moral worth independent of their Utilitarianism, utility to humans, and that their most basic interests—such as ...
groups and greater desires from the public to see them in more natural settings. Several countries restrict or ban such acts. Tigers have become popular in the exotic pet trade, particularly in the United States where only 6% of the captive tiger population in 2020 were being housed in zoos and other facilities approved by the Association of Zoos and Aquariums. Private collectors are thought to be ill-equipped to provide proper care for tigers, which compromises their welfare. They can also threaten public safety by allowing people to interact with them. The keeping of tigers and other big cats by private people was banned in the US in 2022. Most countries in the European Union have banned breeding and keeping tigers outside of licensed zoos and rescue centres, but some still allow private holdings.


Cultural significance

The tiger is among the most famous of the charismatic megafauna. Kailash Sankhala has called it "a rare combination of courage, ferocity and brilliant colour", while Candy d'Sa calls it "fierce and commanding on the outside, but noble and discerning on the inside". In a 2004 online poll involving more than 50,000 people from 73 countries, the tiger was voted the world's favourite animal with 21% of the vote, narrowly beating the dog. Similarly, a 2018 study found the tiger to be the most popular wild animal based on surveys, as well as appearances on websites of major zoos and posters of some animated movies. While the lion represented royalty and power in
Western culture Western culture, also known as Western civilization, European civilization, Occidental culture, Western society, or simply the West, refers to the Cultural heritage, internally diverse culture of the Western world. The term "Western" encompas ...
, the tiger played such a role in various Asian cultures. In
ancient China The history of China spans several millennia across a wide geographical area. Each region now considered part of the Chinese world has experienced periods of unity, fracture, prosperity, and strife. Chinese civilization first emerged in the Y ...
, the tiger was seen as the "king of the forest" and symbolised the power of the
emperor The word ''emperor'' (from , via ) can mean the male ruler of an empire. ''Empress'', the female equivalent, may indicate an emperor's wife (empress consort), mother/grandmother (empress dowager/grand empress dowager), or a woman who rules ...
. In Chinese astrology, the tiger is the third out of 12 symbols in the
Chinese zodiac The Chinese zodiac is a traditional classification scheme based on the Chinese calendar that assigns an animal and its reputed attributes to each year in a repeating twelve-year (or duodenary) cycle. The zodiac is very important in traditional ...
and controls the period between 15:00 and 17:00 o'clock in the afternoon. The Year of the Tiger is thought to bring "dramatic and extreme events". The White Tiger is one of the Four Symbols of the Chinese constellations, representing the west along with the yin and the season of autumn. It is the counterpart to the Azure Dragon, which conversely symbolises the east, yang and springtime. The tiger is one of the animals displayed on the Pashupati seal of the
Indus Valley Civilisation The Indus Valley Civilisation (IVC), also known as the Indus Civilisation, was a Bronze Age civilisation in the Northwestern South Asia, northwestern regions of South Asia, lasting from 3300 Common Era, BCE to 1300 BCE, and in i ...
. The big cat was depicted on seals and coins during the Chola dynasty of southern India, as it was the official emblem.Thapar, R. "In Times Past" in Tigers have had religious and folkloric significance. In
Buddhism Buddhism, also known as Buddhadharma and Dharmavinaya, is an Indian religion and List of philosophies, philosophical tradition based on Pre-sectarian Buddhism, teachings attributed to the Buddha, a wandering teacher who lived in the 6th or ...
, the tiger, monkey and deer are the Three Senseless Creatures, with the tiger symbolising anger. In
Hinduism Hinduism () is an Hypernymy and hyponymy, umbrella term for a range of Indian religions, Indian List of religions and spiritual traditions#Indian religions, religious and spiritual traditions (Sampradaya, ''sampradaya''s) that are unified ...
, the tiger is the
vehicle A vehicle () is a machine designed for self-propulsion, usually to transport people, cargo, or both. The term "vehicle" typically refers to land vehicles such as human-powered land vehicle, human-powered vehicles (e.g. bicycles, tricycles, velo ...
of Durga, the goddess of feminine power and peace, whom the gods created to fight demons. Similarly, in the
Greco-Roman world The Greco-Roman world , also Greco-Roman civilization, Greco-Roman culture or Greco-Latin culture (spelled Græco-Roman or Graeco-Roman in British English), as understood by modern scholars and writers, includes the geographical regions and co ...
, the tiger was depicted being ridden by the god
Dionysus In ancient Greek religion and Greek mythology, myth, Dionysus (; ) is the god of wine-making, orchards and fruit, vegetation, fertility, festivity, insanity, ritual madness, religious ecstasy, and theatre. He was also known as Bacchus ( or ; ...
. In
Korean mythology Korean mythology () is the group of myths told by historical and modern Koreans. There are two types: the written, literary mythology in traditional histories, mostly about the founding monarchs of List of monarchs of Korea, various historical k ...
, tigers are messengers of the Mountain Gods. In both Chinese and
Korean culture The traditional culture of Korea is the shared cultural and historical heritage of Korea before the division of Korea in 1945. Since the mid-20th century, Korea has been split between the North Korean and South Korean sovereign state, stat ...
, tigers are seen as protectors against evil spirits and their image was used to decorate homes, tombs and articles of clothing. In the folklore of Malaysia and Indonesia, "tiger shamans" heal the sick by invoking the big cat. People turning into tigers and the inverse has also been widespread; in particular weretigers are people who could change into tigers and back again. The Mnong people of Indochina believed that tigers could shapeshift into humans. Among some
indigenous peoples of Siberia Siberia is a vast region spanning the North Asia, northern part of the Asian continent and forming the Asiatic portion of Russia. As a result of the Russian conquest of Siberia (16th to 19th centuries) and of the subsequent Special settlements in ...
, it was believed that men would seduce women by transforming into tigers.
William Blake William Blake (28 November 1757 – 12 August 1827) was an English poet, painter, and printmaker. Largely unrecognised during his life, Blake has become a seminal figure in the history of the Romantic poetry, poetry and visual art of the Roma ...
's 1794 poem " The Tyger" portrays the animal as the duality of beauty and ferocity. It is the sister poem to " The Lamb" in Blake's '' Songs of Innocence and of Experience'' and he ponders how God could create such different creatures. The tiger is featured in the mediaeval Chinese novel '' Water Margin'', where the cat battles and is slain by the bandit Wu Song, while the tiger
Shere Khan Shere Khan () is a fictional Bengal tiger featured in the Mowgli stories of Rudyard Kipling's ''The Jungle Book, Jungle Book''. He is often portrayed as the main antagonist in the book's media adaptations, itself an exaggeration of his role in ...
in
Rudyard Kipling Joseph Rudyard Kipling ( ; 30 December 1865 – 18 January 1936)''The Times'', (London) 18 January 1936, p. 12. was an English journalist, novelist, poet, and short-story writer. He was born in British Raj, British India, which inspired much ...
's '' The Jungle Book'' (1894) is the mortal enemy of the human protagonist Mowgli. Friendly tame tigers have also existed in culture, notably Tigger, the
Winnie-the-Pooh Winnie-the-Pooh (also known as Edward Bear, Pooh Bear or simply Pooh) is a fictional Anthropomorphism, anthropomorphic teddy bear created by English author A. A. Milne and English illustrator E. H. Shepard. Winnie-the-Pooh first appeared by ...
character and
Tony the Tiger Tony the Tiger is the advertising cartoon anthropomorphic tiger mascot for Frosted Flakes (also known as Frosties) breakfast cereal, appearing on its packaging and advertising. After the original Kellogg's, Kellogg Company spun off its North Am ...
, the
Kellogg's Kellanova, formerly known as the Kellogg Company and commonly known as Kellogg's, is an American Multinational corporation, multinational food manufacturing company headquartered in Chicago, Illinois, US. Kellanova produces and markets con ...
cereal mascot.


See also

* List of largest cats * International Tiger Day * Tiger Temple


References


Bibliography

* * * * * * * *


External links

* * * * * {{Portal bar, Cats, Mammals, Animals, Biology, Asia Apex predators Big cats Conservation-reliant species EDGE species Extant Pleistocene first appearances Fauna of South Asia Fauna of Southeast Asia Felids of Asia Mammals described in 1758 Mammals of East Asia National symbols of India National symbols of Malaysia National symbols of Singapore Panthera Species that are or were threatened by agricultural development Species that are or were threatened by deliberate extirpation efforts Species that are or were threatened by logging Species that are or were threatened by urbanization Taxa named by Carl Linnaeus