The four-horned antelope (''Tetracerus quadricornis''), or ''chousingha'', is a small

antelope The term antelope is used to refer to many species of even-toed ruminant that are indigenous to various regions in Africa and Eurasia. Antelope comprise a wastebasket taxon defined as any of numerous Old World grazing and browsing hoofed mammals ...

found in

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

and

Nepal Nepal (; ne, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in South Asia. It is mai ...

. Its four

horns Horns or The Horns may refer to: * Plural of Horn (instrument), a group of musical instruments all with a horn-shaped bells * The Horns (Colorado), a summit on Cheyenne Mountain * ''Horns'' (novel), a dark fantasy novel written in 2010 by Joe Hill ...

distinguish it from most other

bovid The Bovidae comprise the biological family of cloven-hoofed, ruminant mammals that includes cattle, bison, buffalo, antelopes, and caprines. A member of this family is called a bovid. With 143 extant species and 300 known extinct species, the ...

s, which have two horns (with a few exceptions, such as the

Jacob sheep The Jacob is a British breed of domestic sheep. It combines two characteristics unusual in sheep: it is piebald—dark-coloured with areas of white wool—and it is often polycerate or multi-horned. It most commonly has four horns. The origi ...

). The sole member of the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

''Tetracerus'', the species was first described by French zoologist

Henri Marie Ducrotay de Blainville Henri Marie Ducrotay de Blainville (; 12 September 1777 – 1 May 1850) was a French zoologist and anatomist. Life Blainville was born at Arques, near Dieppe. As a young man he went to Paris to study art, but ultimately devoted himself to natur ...

in 1816. Three

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

are recognised. The four-horned antelope stands nearly at the shoulder and weighs nearly . Slender with thin legs and a short tail, the four-horned antelope has a yellowish brown to reddish coat. One pair of horns is located between the ears, and the other on the forehead. The posterior horns are always longer than the

anterior Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position prov ...

horns, which might be mere fur-covered studs. While the posterior horns measure , the anterior ones are long. The four-horned antelope is diurnal (active mainly during the day). Though solitary by nature, four-horned antelopes may form loose groups of three to five –with one or more adults, sometimes accompanied by juveniles. This elusive antelope feeds on grasses, herbs, shrubs, foliage, flowers and fruits. It needs to drink water frequently; as such it stays in places near water sources. The breeding behaviour of the four-horned antelope has not been well studied. The age at which they reach

sexual maturity Sexual maturity is the capability of an organism to reproduce. In humans it might be considered synonymous with adulthood, but here puberty is the name for the process of biological sexual maturation, while adulthood is based on cultural definitio ...

and the season when mating occurs have not been understood well.

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 pregna ...

lasts about eight months, following which one or two calves are born. They are kept concealed for the first few weeks of their birth. The young remain with the mother for about a year. Four-horned antelopes tend to inhabit areas with significant grass cover or heavy

undergrowth Undergrowth usually refers to the vegetation in the lower part of a forest, which can obstruct passage through the forest. The height of undergrowth is usually considered to be 0.3 – 3 m (1 – 9 ft.). Undergrowth can also refer to all ...

, and avoid human settlements. Earlier common throughout

deciduous forest 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 leaves, usually in the autumn; to the shedding of petals, aft ...

s in India, the antelope now occurs in widely disjunct, small populations. Most of the populations are in India, and lower numbers can be found in adjoining

. The four-horned antelope is threatened by the loss of its natural habitat due to

agricultural expansion Agricultural expansion describes the growth of agricultural land (arable land, pastures, etc.) especially in the 20th and 21st centuries. The agricultural expansion is often explained as a direct consequence of the global increase in food and ene ...

. Moreover, the unusual four-horned skull and the horns have been a popular target for trophy hunters. The four-horned antelope is classified as Vulnerable by the International Union for the Conservation of Nature and Natural Resources (

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

Etymology

The

scientific name In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

of the four-horned antelope is ''Tetracerus quadricornis''. The generic name ''Tetracerus'' is the combination of two

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

words: ''tetra'' meaning "four" and ''keras'' meaning "horn". The specific name ''quadricornis'' is derived from two

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

words: ''quattuor'' meaning "four" and ''cornu'' "horn". The four-horned antelope is known by several vernacular names: ''chausingha'', ''chowsingha'', ''chousingha'' (

Hindi Hindi (Devanāgarī: or , ), or more precisely Modern Standard Hindi (Devanagari: ), is an Indo-Aryan language spoken chiefly in the Hindi Belt region encompassing parts of northern, central, eastern, and western India. Hindi has been de ...

for "four horns"), ''doda'', ''ghutri'' (mainly in central India) (Hindi); ''kondu kuri'' (

Kannada Kannada (; ಕನ್ನಡ, ), originally romanised Canarese, is a Dravidian language spoken predominantly by the people of Karnataka in southwestern India, with minorities in all neighbouring states. It has around 47 million native s ...

); ''chauka'' ( Nepalese); ''nari komboo marn'' (

Tamil Tamil may refer to: * Tamils, an ethnic group native to India and some other parts of Asia **Sri Lankan Tamils, Tamil people native to Sri Lanka also called ilankai tamils **Tamil Malaysians, Tamil people native to Malaysia * Tamil language, nativ ...

Taxonomy and phylogeny

The four-horned antelope is the sole member of the

''Tetracerus'', and is placed under the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Bovidae The Bovidae comprise the biological family of cloven-hoofed, ruminant mammals that includes cattle, bison, buffalo, antelopes, and caprines. A member of this family is called a bovid. With 143 extant species and 300 known extinct species, ...

. The species was first described by French zoologist

in 1816. The four-horned antelope has only one other relative in the tribe

Boselaphini Boselaphini is a tribe of bovines. It contains only two extant genera, each with a single extant species. Description The Boselaphini or four-horned antelope tribe are the last survivors of a form very similar to that of the ancestors of the br ...

, the

nilgai The nilgai (''Boselaphus tragocamelus'') (, literally meaning "blue cow") is the largest Asian antelope and is ubiquitous across the northern Indian subcontinent. It is the sole member of the genus ''Boselaphus'' and was described by Peter Sim ...

(''Boselaphus tragocamelus''). The Boselaphini have horns with a keel on the front and lack rings as found in other antelope groups. The

authority In the fields of sociology and political science, authority is the legitimate power of a person or group over other people. In a civil state, ''authority'' is practiced in ways such a judicial branch or an executive branch of government.''The N ...

for ''Tetracerus'' is variously indicated according to interpretations of the

International Code of Zoological Nomenclature The International Code of Zoological Nomenclature (ICZN) is a widely accepted convention in zoology that rules the formal scientific naming of organisms treated as animals. It is also informally known as the ICZN Code, for its publisher, the ...

. The name was first published in an 1825 publication by English naturalist

Thomas Hardwicke Major-General Thomas Hardwicke (1756 – 3 March 1835) was an English soldier and naturalist who was in India from 1777 to 1823. He collected numerous specimens of natural history and had them painted by Indian artists. From these paintings ma ...

but cited the English zoologist

William Elford Leach William Elford Leach Royal Society, FRS (2 February 1791 – 25 August 1836) was an English zoologist and marine biologist. Life and work Elford Leach was born at Hoe Gate, Plymouth, the son of an attorney. At the age of twelve he began a me ...

– probably by an editor – as the authority in a footnote at the end of the publication.

Philip Sclater Philip Lutley Sclater (4 November 1829 – 27 June 1913) was an England, English lawyer and zoologist. In zoology, he was an expert ornithologist, and identified the main zoogeographic regions of the world. He was Secretary of the Zoological ...

and

Oldfield Thomas Michael Rogers Oldfield Thomas (21 February 1858 – 16 June 1929) was a British zoologist. Career Thomas worked at the Natural History Museum on mammals, describing about 2,000 new species and subspecies for the first time. He was appoin ...

listed Hardwicke as the genus authority by virtue of his being the author of the publication. However, Leach is now identified as the appropriate authority based on Article 50.1.1 of the Zoological Code. A 1992

phylogenetic In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups o ...

study showed a strong possibility of a

clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...

consisting of Boselaphini,

Bovini The Tribe (biology), tribe Bovini, or wild cattle, are medium to massive Bovinae, bovines that are native to North America, Eurasia, and Africa. These include the enigmatic, antelope-like saola, the African and Asiatic Bubalina, buffalos, and a c ...

and

Tragelaphini The tribe Tragelaphini (sometimes referred to by some authors as "Strepsicerotini"), or the spiral-horned antelopes, are bovines that are endemic to sub- Sahara Africa. These include the bushbuck, kudus, and the elands. The scientific name is in ...

. Bovini consists of the genera ''

Bubalus ''Bubalus'' is a genus of Asiatic bovines that was proposed by Charles Hamilton Smith in 1827. ''Bubalus'' and '' Syncerus'' form the subtribe Bubalina, the true buffaloes. The International Code of Zoological Nomenclature and classification of ...

'', ''

Bos ''Bos'' (from Latin '' bōs'': cow, ox, bull) is the genus of wild and domestic cattle. ''Bos'' is often divided into four subgenera: ''Bos'', ''Bibos'', ''Novibos'', and ''Poephagus'', but including these last three divisions within the genus ...

'', ''Pseudoryx'' (

saola The saola (''Pseudoryx nghetinhensis''), also called spindlehorn, Asian unicorn, or infrequently, Vu Quang bovid, is one of the world's rarest large mammals, a forest-dwelling bovine native to the Annamite Range in Vietnam and Laos. It was descr ...

), ''Syncerus'' ( African buffalo), ''

Bison Bison are large bovines in the genus ''Bison'' (Greek: "wild ox" (bison)) within the tribe Bovini. Two extant and numerous extinct species are recognised. Of the two surviving species, the American bison, ''B. bison'', found only in North Ame ...

'' and the

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

Pelorovis ''Pelorovis'' ("prodigious/monstrous sheep") is an extinct genus of African wild cattle which existed during the Pleistocene epoch.Alan Turner & Mauricio Anton: ''Evolving Eden, An Illustrated Guide to the Evolution of the African Large-Mammal Fau ...

''. Tragelaphini consists of two genera: ''

Taurotragus ''Taurotragus'' is a genus of large antelopes of the African savanna, commonly known as elands. It contains two species: the common eland ''T. oryx'' and the giant eland ''T. derbianus''. Taxonomy ''Taurotragus'' is a genus of large African ...

'' (eland) and ''

Tragelaphus ''Tragelaphus'' is a genus of medium- to large-sized, spiral-horned antelopes. It contains several species of bovines, all of which are relatively antelope-like. Species in this genus tend to be large in size and lightly built, and have long nec ...

''. Boselaphini and Tragelaphini were predicted to be close; this was seconded by a similar study in 1999. The following cladogram is based on the 1992 study:

Colin Groves Colin Peter Groves (24 June 1942 – 30 November 2017) was a British-Australian biologist and anthropologist. Groves was Professor of Biological Anthropology at the Australian National University in Canberra, Australia. Education Born in Englan ...

(2003) recognizes three

of the four-horned antelope on the basis of distribution and physical characteristics such as

coat A coat typically is an outer garment for the upper body as worn by either gender for warmth or fashion. Coats typically have long sleeves and are open down the front and closing by means of buttons, zippers, hook-and-loop fasteners, toggles, a ...

colour, body size and the number of horns: * ''T. q. iodes'' (

Hodgson Hodgson is a surname. In Britain, the Hodgson surname was the 173rd most common (766 per million) in 1881 and the 206th most common (650 per million) in 1998. In the United States of America, Hodgson was the 3753rd most popular surname (30 per mill ...

, 1847): distributed north of the Ganges in Nepal * ''T. q. quadricornis'' (de Blainville, 1816): distributed in peninsular India * ''T. q. subquadricornutus'' (

Elliot Elliot (also spelled Eliot, Elliotte, Elliott, Eliott and Elyot) is a personal name which can serve as either a surname or a given name. Although the given name has historically been given to males, females have increasingly been given the name ...

, 1839) distributed in the Western Ghats and southern India

Evolution

Though Boselaphini has no African representation today,

fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...

evidence supports its presence in the continent during as early as the late

Miocene The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ...

– the two living antelopes of this tribe, in fact, have been found to have a closer relationship with the earliest bovids (like ''

Eotragus ''Eotragus'' is an extinct genus of early bovid. Species belonging to the genus inhabited Europe, Africa, and Asia during the Miocene some 20-18 million years ago. It is related to the modern nilgai and four-horned antelope. It was small and pr ...

'' species) than do the other bovids. This tribe originated at least 8.9 Mya, in much the same area where the four-horned antelope occurs today, and may represent the most "primitive" of all living bovids, having changed the least since the origins of the family. The extant and extinct boselaphine forms show similar development of the horn cores (the central bony part of the horn). It is thought that ancestral bovids had a

diploid Ploidy () is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes. Sets of chromosomes refer to the number of maternal and paternal chromosome copies, respectively ...

chromosome A chromosome is a long DNA molecule with part or all of the genetic material of an organism. In most chromosomes the very long thin DNA fibers are coated with packaging proteins; in eukaryotic cells the most important of these proteins are ...

number of 58 which has reduced in ''Tetracerus'' to 38 through a process of concatenation of some chromosomes. Fossils of '' Protragocerus labidotus'' and '' Sivoreas eremita'' dating back to the late Miocene have been discovered in the Ngorora formation (

Kenya ) , national_anthem = "Ee Mungu Nguvu Yetu"() , image_map = , map_caption = , image_map2 = , capital = Nairobi , coordinates = , largest_city = Nairobi , ...

). fossils from the same period have also been excavated in the eastern

Mediterranean region In biogeography, the Mediterranean Basin (; also known as the Mediterranean Region or sometimes Mediterranea) is the region of lands around the Mediterranean Sea that have mostly a Mediterranean climate, with mild to cool, rainy winters and wa ...

. Other Miocene fossils of boselaphines discovered are of ''

Miotragocerus ''Miotragocerus'', also known as the European eland, is an extinct species of antelope that once lived in Europe in 10 to 8 million years ago. They were most likely browsers Browse, browser or browsing may refer to: Programs * Web browser, a ...

'', '' Tragocerus'' and ''

Tragoportax ''Tragoportax'' is an extinct mammal genus belonging to the Bovidae.Miocene

(

''. Fossils of ''Miotragoceros'' are not apparent in Africa (only ''M. cyrenaicus'' has been reported from the continent), but have significant presence in the

Shiwalik Hills The Sivalik Hills, also known as the Shivalik Hills and Churia Hills, are a mountain range of the outer Himalayas that stretches over about from the Indus River eastwards close to the Brahmaputra River, spanning the northern parts of the Indian ...

and

Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...

, as do several ''Tragoportax'' species. A 2005 study suggested the migration of ''Miotragoceros'' to eastern Asia around 8 Mya. Alan W. Gentry of the

Natural History Museum A natural history museum or museum of natural history is a scientific institution with natural history collections that include current and historical records of animals, plants, fungi, ecosystems, geology, paleontology, climatology, and more. ...

reported the presence of another boselaphine, '' Mesembriportax'', from

Langebaanweg Langebaanweg is a town on the southwest coast of South Africa, in Western Cape Province. It is the location of the air force base AFB Langebaanweg. Langebaanweg has been an important mining center, with its mai minerals consisting of phosphorite ...

(

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...

). Evidence of early

humans Humans (''Homo sapiens'') are the most abundant and widespread species of primate, characterized by bipedalism and exceptional cognitive skills due to a large and complex brain. This has enabled the development of advanced tools, culture, ...

hunting four-horned antelope during the

Mesolithic The Mesolithic (Greek: μέσος, ''mesos'' 'middle' + λίθος, ''lithos'' 'stone') or Middle Stone Age is the Old World archaeological period between the Upper Paleolithic and the Neolithic. The term Epipaleolithic is often used synonymous ...

period (5,000 to 8,000 years ago) have been found in the Kurnool caves of southern India and similar evidence has been found from the

Chalcolithic The Copper Age, also called the Chalcolithic (; from grc-gre, χαλκός ''khalkós'', "copper" and ''líthos'', "stone") or (A)eneolithic (from Latin '' aeneus'' "of copper"), is an archaeological period characterized by regular ...

period (3,000 years ago) in Orissa, eastern India.

Description

The four-horned antelope is one of the smallest Asian bovids. The number of its horns distinguishes it from most of the other bovids, that have two horns The four-horned antelope stands at the shoulder and weighs ; the head-and-body length is typically between .

Sexual dimorphism Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most ani ...

is not very notable, though only males possess horns. Slender with thin legs and a short tail, the four-horned antelope has a yellowish brown to reddish coat. The underparts and the insides of the legs are white. Facial features include black markings on the muzzle and behind the ears. A black stripe marks the outer surface of each leg. Females have four teats far back on the abdomen. The hair feels coarse, more like that of a

deer Deer or true deer are hoofed ruminant mammals forming the family Cervidae. The two main groups of deer are the Cervinae, including the muntjac, the elk (wapiti), the red deer, and the fallow deer; and the Capreolinae, including the reindeer ...

than the glossy hair typical of

s. The

fetlock Fetlock is the common name in horses, large animals, and sometimes dogs for the metacarpophalangeal and metatarsophalangeal joints (MCPJ and MTPJ). Although it somewhat resembles the human ankle in appearance, the joint is homologous to the ba ...

s are marked with white patches. One pair of horns is located between the ears, and the other on the forehead. The posterior horns are always longer than the

horns, which might be mere fur-covered studs. While the posterior horns each measures , the anterior ones measure . Horns emerge at 10 to 14 months. According to Groves, anterior horns show the poorest development in the subspecies ''T. q. subquadricornutus''. These horns measure nearly in ''T. q. quadricornis'', and nearly in ''T. q. iodes''. The posterior horn lengths for the subspecies recorded by him were: for ''T. q. quadricornis'', in ''T. q. iodes'' and in ''T. q. subquadricornutus''. The four-horned antelope differs greatly from the nilgai in colour, is much smaller and has an extra pair of horns. The nilgai is nearly nine times heavier and two times taller than the four-horned antelope. Two deer species, the

Indian muntjac The Indian muntjac or the common muntjac (''Muntiacus muntjak''), also called the southern red muntjac and barking deer, is a deer species native to South and Southeast Asia. It is listed as Least Concern on the IUCN Red List. In popular local l ...

and the

Indian hog deer The Indian hog deer (''Axis porcinus'') is a small deer native to the Indo-Gangetic Plain in Pakistan, northern India, Nepal, Bangladesh to mainland Southeast Asia. It also occurs in western Thailand, and is possibly extirpated from China (in sou ...

, can be confused with this antelope. The four-horned antelope, however, lacks their

antler Antlers are extensions of an animal's skull found in members of the Cervidae (deer) family. Antlers are a single structure composed of bone, cartilage, fibrous tissue, skin, nerves, and blood vessels. They are generally found only on male ...

s. The

chinkara The chinkara (''Gazella bennettii''), also known as the Indian gazelle, is a gazelle species native to Iran, Afghanistan, Pakistan and India. Taxonomy The following six subspecies are considered valid: * Deccan chinkara (''G. b. bennettii'') ...

, a

gazelle A gazelle is one of many antelope species in the genus ''Gazella'' . This article also deals with the seven species included in two further genera, ''Eudorcas'' and ''Nanger'', which were formerly considered subgenera of ''Gazella''. A third f ...

, can be told apart by its light brown coat and larger, ringed horns.

Ecology and behaviour

The four-horned antelope is diurnal (active mainly during the day), though it mainly rests or ruminates in dense

at noon. Though solitary by nature, the four-horned antelope may form loose groups of three to five. Groups consist of one or more adults, sometimes accompanied by juveniles. Males and females hardly interact, except in the mating season. The antelope is shy and elusive. When alarmed, it stands motionless and may nervously leap away from the danger or even sprint. It often conceals itself in tall grasses to escape predators. The use of alarm calls to alert others is not common because the antelope tries to avoid the attention of predators. However, in extreme cases, these calls may be used to warn predators that they have been identified. Adults

mark Mark may refer to: Currency * Bosnia and Herzegovina convertible mark, the currency of Bosnia and Herzegovina * East German mark, the currency of the German Democratic Republic * Estonian mark, the currency of Estonia between 1918 and 1927 * Fi ...

vegetation in their

territories A territory is an area of land, sea, or space, particularly belonging or connected to a country, person, or animal. In international politics, a territory is usually either the total area from which a state may extract power resources or an ...

with a colourless secretion of

preorbital gland The preorbital gland is a paired exocrine gland found in many species of hoofed animals, which is homologous to the lacrimal gland found in humans. These glands are trenchlike slits of dark blue to black, nearly bare skin extending from the med ...

s, that soon condenses to form a white film. They maintain multiple latrine sites where piles of their pellet droppings are formed by regular use. Latrine sites can be confused with those of the barking deer but the pellets are longer and larger in four-horned antelopes. Submissive

display Display may refer to: Technology * Display device, output device for presenting information, including: ** Cathode ray tube, video display that provides a quality picture, but can be very heavy and deep ** Electronic visual display, output devi ...

consists of shrinking the body, lowering the head and pulling the ears back. Predators of four-horned antelopes include

tiger The tiger (''Panthera tigris'') is the largest living cat species and a member of the genus '' Panthera''. It is most recognisable for its dark vertical stripes on orange fur with a white underside. An apex predator, it primarily preys on u ...

leopard The leopard (''Panthera pardus'') is one of the five extant species in the genus '' Panthera'', a member of the cat family, Felidae. It occurs in a wide range in sub-Saharan Africa, in some parts of Western and Central Asia, Southern Russia, a ...

s, and

dhole The dhole (''Cuon alpinus''; ) is a canid native to Central, South, East and Southeast Asia. Other English names for the species include Asian wild dog, Asiatic wild dog, Indian wild dog, whistling dog, red dog, red wolf, and mountain wolf. It ...

Diet

The four-horned antelope feeds on grasses, herbs, shrubs, foliage, flowers and fruits. A study in

Mudumalai National Park Mudumalai National Park is a national park in the Nilgiri Mountains in Tamil Nadu, south India. It covers at an elevation range of in the Nilgiri District and shares boundaries with the states of Karnataka and Kerala. A part of this area has ...

(

Tamil Nadu Tamil Nadu (; , TN) is a States and union territories of India, state in southern India. It is the List of states and union territories of India by area, tenth largest Indian state by area and the List of states and union territories of India ...

, India) showed that the antelope prefers grass species of the family

Cyperaceae The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus ''Carex'' w ...

; genera ''

Axonopus ''Axonopus'' is a genus of plants in the grass family, known generally as carpet grass. They are native primarily to the tropical and subtropical regions of the Americas with one species in tropical Africa and another on Easter Island. They are ...

'', ''

Cynodon ''Cynodon'' is a genus of plants in the grass family. It is native to warm temperate to tropical regions of the Old World, as well as being cultivated and naturalized in the New World and on many oceanic islands. The genus name comes from Gre ...

'', ''

Digitaria ''Digitaria'' is a genus of plants in the Poaceae, grass family native to tropical and warm temperate regions but can occur in tropical, subtropical, and cooler temperate regions as well. Common names include crabgrass, finger-grass, and fonio. ...

'', ''

Echinochloa ''Echinochloa'' is a very widespread genus of plants in the grass family and tribe Paniceae. Some of the species are known by the common names barnyard grass or cockspur grass. Some of the species within this genus are millets that are grown a ...

'', ''

Panicum ''Panicum'' (panicgrass) is a large genus of about 450 species of grasses native throughout the tropical regions of the world, with a few species extending into the northern temperate zone. They are often large, annual or perennial grasses, growi ...

'', ''

Sehima ''Sehima'' is a genus of mostly Asian and African plants in the grass family.Sporobolus ''Sporobolus'' is a nearly cosmopolitan genus of plants in the grass family. The name ''Sporobolus'' means "seed-thrower", and is derived from Ancient Greek word (), meaning "seed", and the root of () "to throw", referring to the dispersion of ...

''; and the species ''

Imperata cylindrica ''Imperata cylindrica'' (commonly known as cogongrass or kunai grass ) is a species of Perennial plant, perennial rhizomatous grass native to tropical and subtropical Asia, Micronesia, Melanesia, Australia, Africa, and southern Europe. It has al ...

'', ''

Ottochloa nodosa ''Ottochloa'' is a genus of African, Asian, and Australian plants in the grass family.Stapf, Otto 1920. Flora of Tropical Africa 9: 741Pseudanthistria umbellata'' and ''

Themeda cymbaria ''Themeda'' is a genus of plants in the grass family native to Asia, Africa, Australia, and Papuasia. There are about 18Barkworth, M. E''Themeda''.Grass Manual. Flora of North America. to 26Potdar, G. G., et al. (2003)A new species of ''Themeda ...

''. The shrub ''

Grewia hirsuta ''Grewia hirsuta'' is an Asian species of flowering plant in the mallow family, Malvaceae Malvaceae, or the mallows, is a family of flowering plants estimated to contain 244 genera with 4225 known species. Well-known members of economic importa ...

'' is frequently eaten. Preferred herbs include ''

Helichrysum The genus ''Helichrysum'' consists of an estimated 600 species of flowering plants in the sunflower family (Asteraceae). The type species is ''Helichrysum orientale''. They often go by the names everlasting, immortelle, and strawflower. The name ...

'', ''

Indigofera ''Indigofera'' is a large genus of over 750 species of flowering plants belonging to the pea family Fabaceae. They are widely distributed throughout the tropical and subtropical regions of the world. Description Species of ''Indigofera'' are mo ...

'' and ''

Tinospora ''Tinospora'' is a genus of succulent woody climbing shrubs. Thirty-four species are currently recognized. Species generally send down long aerial roots from host trees. They have corky or papery bark. They are found in tropical and sub-tropical ...

'' species and ''

Leucas aspera ''Leucas aspera'' is a plant species within the genus ''Leucas'' and the family Lamiaceae The Lamiaceae ( ) or Labiatae are a family of flowering plants commonly known as the mint, deadnettle or sage family. Many of the plants are aromatic ...

''. The four-horned antelope feeds on the leaves of trees such as ''

Cordia wallichii ''Cordia'' is a genus of flowering plants in the borage family, Boraginaceae. It contains about 300 species of shrubs and trees, that are found worldwide, mostly in warmer regions. Many of the species are commonly called manjack, while ''bocote ...

'', ''

Emblica officinalis ''Phyllanthus emblica'', also known as emblic, emblic myrobalan, myrobalan, Indian gooseberry, Malacca tree, or amla, from the Sanskrit आमलकी (āmalakī), is a deciduous tree of the family Phyllanthaceae. Its native range is tropical a ...

'', ''

Randia dumetorum ''Catunaregam spinosa'', the mountain pomegranate, is a flowering plant in the family Rubiaceae, found in South Asia and other Asian countries. Almost all parts of the plant are used as a traditional medicine in Ayurveda and fruits have been repo ...

'' and '' Zizyphus xylopyrus''. Grasses comprise nearly 29 percent of the diet, followed by foliage from trees (nearly nine percent). Grass and

browse Browsing is a kind of orienting strategy. It is supposed to identify something of relevance for the browsing organism. When used about human beings it is a metaphor taken from the animal kingdom. It is used, for example, about people browsing o ...

were consumed in nearly equal proportions. A study in the

Panna National Park Panna National Park is a national park located in Panna and Chhatarpur districts of Madhya Pradesh in India. It has an area of . It was declared in 1994 as the twenty second Tiger reserve of India and the fifth in Madhya Pradesh, Panna was ...

(

Madhya Pradesh Madhya Pradesh (, ; meaning 'central province') is a state in central India. Its capital is Bhopal, and the largest city is Indore, with Jabalpur, Ujjain, Gwalior, Sagar, and Rewa being the other major cities. Madhya Pradesh is the seco ...

, India) showed preference for ''

Zizyphus mauritiana ''Ziziphus mauritiana'', also known as Indian jujube, Indian plum, Chinese date, Chinese apple, ber, and dunks is a tropical fruit tree species belonging to the family Rhamnaceae. It is often confused with the closely related Chinese jujube (' ...

'', ''

Acacia nilotica ''Vachellia nilotica'', more commonly known as ''Acacia nilotica'', and by the vernacular names of gum arabic tree, babul, thorn mimosa, Egyptian acacia or thorny acacia, is a flowering tree in the family Fabaceae. It is native to Africa, the Mi ...

'', '' A. leucophloea'' and '' A. catechu''.

Babool ''Vachellia nilotica'', more commonly known as ''Acacia nilotica'', and by the vernacular names of gum arabic tree, babul, thorn mimosa, Egyptian acacia or thorny acacia, is a flowering tree in the family Fabaceae. It is native to Africa, the Mid ...

flowers were frequently eaten. The antelope often associates with

langur The Colobinae or leaf-eating monkeys are a subfamily of the Old World monkey family that includes 61 species in 11 genera, including the black-and-white colobus, the large-nosed proboscis monkey, and the gray langurs. Some classifications spli ...

s under fruiting trees, just as

chital The chital or cheetal (''Axis axis''; ), also known as the spotted deer, chital deer, and axis deer, is a deer species native to the Indian subcontinent. It was first described and given a binomial name by German naturalist Johann Christian Po ...

frequently do. Interaction with chital, a

sympatric In biology, two related species or populations are considered sympatric when they exist in the same geographic area and thus frequently encounter one another. An initially interbreeding population that splits into two or more distinct species sh ...

species, was infrequent. The antelope is wary when feeding, often raising its head and looking about its vicinity. The four-horned antelope needs to drink water frequently; as such it stays in places near water sources.

Reproduction

Breeding behaviour of the four-horned antelope has not been well studied. The age at which

is gained is doubted; two captive females had their first parturition at less than two years. The breeding season in Panna National Park probably lasts from May to July, and from June to August in Mudumalai National Park. The male approaches the female in a relaxed gait, giving out low coughs. The two may kneel and push against each other with the necks intertwined. The male makes a few short mounting attempts; the female may be foraging all the while without any reaction.

lasts about eight months, followed by the birth of one or two calves. The newborn has a head-and-body length of , and weighs . Juveniles are kept concealed for the first few weeks of birth. Births in Mudumalai National Park peak from February to April. Juveniles remain with their mothers for about a year.

Distribution and habitat

The four-horned antelope is confined to the

Indian subcontinent The Indian subcontinent is a list of the physiographic regions of the world, physiographical region in United Nations geoscheme for Asia#Southern Asia, Southern Asia. It is situated on the Indian Plate, projecting southwards into the Indian O ...

, occurring widely in disjunct and small populations. The range in India covers a vast expanse, from the foothills of the

Himalayas The Himalayas, or Himalaya (; ; ), is a mountain range in Asia, separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has some of the planet's highest peaks, including the very highest, Mount Everest. Over 100 ...

in the north to the

Deccan Plateau The large Deccan Plateau in southern India is located between the Western Ghats and the Eastern Ghats, and is loosely defined as the peninsular region between these ranges that is south of the Narmada river. To the north, it is bounded by the ...

in the south. Most of the existing populations live in India, and lower numbers in adjoining

. The four-horned antelope inhabits open, dry,

s in hilly terrain. It prefers areas close to water bodies that are covered with grasses or heavy undergrowth. It generally keeps away from settlements. It was earlier common throughout deciduous forests in India, but the population declined to an estimated at slightly above 10,000 mature individuals in 2001, with a decreasing trend. Numbers in

Gir National Park Gir National Park and Wildlife Sanctuary, also known as Sasan Gir, is a forest, national park, and wildlife sanctuary near Talala Gir in Gujarat, India. It is located north-east of Somnath, south-east of Junagadh and south-west of Amreli ...

were estimated at 256 individuals in 1974; later estimates at waterholes in the same location put them a little above 1,000. Densities of above 0.7 individuals per km² have been considered as being healthy.

Threats and conservation

The four-horned antelope is threatened by the loss of its natural habitat due to agricultural expansion. Moreover, the unusual four-horned skull and the horns have been a popular target for trophy hunters. In India, the species is protected under Schedule I the

Wildlife Protection Act of 1972 The Wild Life (Protection) Act, 1972 is an Act of the Parliament of India enacted for protection of plants and animal species. Before 1972, India had only five designated national parks. Among other reforms, the Act established scheduled pr ...

and the Nepalese population is listed in

CITES Appendix III CITES (shorter name for the Convention on International Trade in Endangered Species of Wild Fauna and Flora, also known as the Washington Convention) is a multilateral treaty to protect endangered plants and animals from the threats of interna ...

. The four-horned antelope is classified as Vulnerable 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 the world's most comprehensive inventory of the global conservation status of biol ...

. Major protected areas across India where four-horned antelopes occur include: *

in Gujarat; *

Sariska Tiger Reserve Sariska Tiger Reserve is a tiger reserve in Alwar district, Rajasthan, India. It stretches over an area of comprising scrub-thorn arid forests, dry deciduous forests, grasslands, and rocky hills. This area was a hunting preserve of the Alwar ...

in Rajasthan; *

Bandhavgarh National Park Bandhavgarh National Park is a national park of India, located in the Umaria district of Madhya Pradesh. Bandhavgarh, with an area of , was declared a national park in 1968 and then became Tiger Reserve in 1993. The current core area is spread ov ...

Bori Wildlife Sanctuary The Bori Wildlife Sanctuary is a wildlife sanctuary in Hoshangabad District of Madhya Pradesh state in central India. The sanctuary covers an area of , located in the northern foothills of the Satpura Range. It is bounded by the Satpura Nationa ...

Kanha National Park Kanha Tiger Reserve, also known as Kanha–Kisli National Park, is one of the tiger reserves of India and the largest national park of the state of Madhya Pradesh. The present-day Kanha area is divided into two protected areas, Hallon and Banja ...

Pachmarhi Biosphere Reserve The Pachmarhi Biosphere Reserve is a non-use conservation area and biosphere reserve in the Satpura Range of Madhya Pradesh states and territories of India, state in central India. The conservation area was created in 1999 by the Indian governm ...

Panna Tiger Reserve Panna National Park is a national park located in Panna and Chhatarpur districts of Madhya Pradesh in India. It has an area of . It was declared in 1994 as the twenty second Tiger reserve of India and the fifth in Madhya Pradesh, Panna wa ...

Pench Tiger Reserve Pench Tiger Reserve or Pench National Park is one of the premier tiger reserves of India and the first one to straddle across two states - Madhya Pradesh and Maharashtra. The reference to Pench is mostly to the tiger reserve in Madhya Pradesh. ...

Sanjay National Park Sanjay National Park (Guru Ghasidas National Park) is a national park in Koriya district of Chhattisgarh and Sidhi, Singrauli districts of Madhya Pradesh state, India. It covers an area of and is a part of the Sanjay-Dubri Tiger Reserve. It is ...

Satpura National Park Satpura Tiger Reserve (STR) also known as Satpura National Park is located in the Hoshangabad District (newly named Narmadapuram ) of Madhya Pradesh in India. Its name is derived from the Satpura range. It covers an area of . Satpura National Pa ...

in Madhya Pradesh; * Tadoba Andhari Reserve in

Maharashtra Maharashtra (; , abbr. MH or Maha) is a states and union territories of India, state in the western India, western peninsular region of India occupying a substantial portion of the Deccan Plateau. Maharashtra is the List of states and union te ...

; *

Kumbhalgarh Wildlife Sanctuary Kumbhalgarh Wildlife Sanctuary is located in the Rajsamand District of Rajasthan State in western India. It surrounds the Kumbhalgarh fortress and covers an area of . The sanctuary extends across the Aravalli Range, covering parts of Rajsamand ...

Ranthambore National Park Ranthambore National Park is a national park in Rajasthan, India, with an area of . It is bounded to the north by the Banas River and to the south by the Chambal River. It is named after the historic Ranthambore Fort, which lies within the park ...

, Rangayyanadurga Wildlife Sanctuary in Karnataka.

References

External links

* * {{Taxonbar, from1=Q273580, from2=Q10824586 Bovines Mammals of India Mammals of Nepal Fauna of Madhya Pradesh Mammals described in 1816 Taxa named by Henri Marie Ducrotay de Blainville

Etymology

Taxonomy and phylogeny

Evolution

Description

Ecology and behaviour

Diet

Reproduction

Distribution and habitat

Threats and conservation

See also

References

External links