|
Cheirogaleidae
The Cheirogaleidae are the family of strepsirrhine primates containing the various dwarf and mouse lemurs. Like all other lemurs, cheirogaleids live exclusively on the island of Madagascar. Characteristics Cheirogaleids are smaller than the other lemurs and, in fact, they are the smallest primates. They have soft, long fur, colored grey-brown to reddish on top, with a generally brighter underbelly. Typically, they have small ears, large, close-set eyes, and long hind legs. Like all strepsirrhines, they have fine claws at the second toe of the hind legs. They grow to a size of only 13 to 28 cm, with a tail that is very long, sometimes up to one and a half times as long as the body. They weigh no more than 500 grams, with some species weighing as little as 60 grams. Dwarf and mouse lemurs are nocturnal and arboreal. They are excellent climbers and can also jump far, using their long tails for balance. When on the ground (a rare occurrence), they move by hopping on t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fork-marked Lemur
Fork-marked lemurs or fork-crowned lemurs are strepsirrhine primates; the four species comprise the genus ''Phaner''. Like all lemurs, they are native to Madagascar, where they are found only in the west, north, and east sides of the island. They are named for the two black stripes which run up from the eyes, converge on the top of the head, and run down the back as a single black stripe. They were originally placed in the genus ''Lemur'' in 1839, later moved between the genera '' Cheirogaleus'' and ''Microcebus'', and given their own genus in 1870 by John Edward Gray. Only one species ('' Phaner furcifer'') was recognized, until three subspecies described in 1991 were promoted to species status in 2001. New species may yet be identified, particularly in northeast Madagascar. Fork-marked lemurs are among the least studied of all lemurs and are some of the largest members of the family Cheirogaleidae, weighing around or more. They are the most phylogenetically distinct of the ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lemur
Lemurs ( ) (from Latin ''lemures'' – ghosts or spirits) are Strepsirrhini, wet-nosed primates of the Superfamily (biology), superfamily Lemuroidea (), divided into 8 Family (biology), families and consisting of 15 genera and around 100 existing species. They are endemic to the island of Madagascar. Most existing lemurs are small, have a pointed snout, large eyes, and a long tail. They arboreal, chiefly live in trees and nocturnal, are active at night. Lemurs share resemblance with other primates, but evolved independently from monkeys and apes. Due to Madagascar's highly seasonal climate, Evolution of lemurs, lemur evolution has produced a level of species diversity rivaling that of any other primate group. Until shortly after humans arrived on the island around 2,000 years ago, there were lemurs as large as a male gorilla. Most species have been discovered or promoted to full species status since the 1990s; however, lemur Taxonomy (biology), taxonomic classification is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant Mouse Lemur
The giant mouse lemurs are members of the strepsirrhine primate genus ''Mirza''. Two species have been formally described; the northern giant mouse lemur (''Mirza zaza'') and Coquerel's giant mouse lemur (''Mirza coquereli''). Like all other lemurs, they are native to Madagascar, where they are found in the western dry deciduous forests and further to the north in the Sambirano Valley and Sahamalaza Peninsula. First described in 1867 as a single species, they were grouped with mouse lemurs and dwarf lemurs. In 1870, British zoologist John Edward Gray assigned them to their own genus, ''Mirza''. The classification was not widely accepted until the 1990s, which followed the revival of the genus by American paleoanthropologist Ian Tattersall in 1982. In 2005, the northern population was declared a new species, and in 2010, the World Wide Fund for Nature announced that a southwestern population might also be a new species. Giant mouse lemurs are about three times larger than mou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strepsirrhine
Strepsirrhini or Strepsirhini (; ) is a suborder of primates that includes the lemuriform primates, which consist of the lemurs of Madagascar, galagos ("bushbabies") and pottos from Africa, and the lorises from India and southeast Asia. Collectively they are referred to as strepsirrhines. Also belonging to the suborder are the extinct adapiform primates which thrived during the Eocene in Europe, North America, and Asia, but disappeared from most of the Northern Hemisphere as the climate cooled. Adapiforms are sometimes referred to as being "lemur-like", although the diversity of both lemurs and adapiforms does not support this comparison. Strepsirrhines are defined by their "wet" (moist) rhinarium (the tip of the snout) – hence the colloquial but inaccurate term "wet-nosed" – similar to the rhinaria of canines and felines. They also have a smaller brain than comparably sized simians, large olfactory lobes for smell, a vomeronasal organ to detect pheromones, and a bicornuat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheirogaleus Grovesi
Groves' dwarf lemur (''Cheirogaleus grovesi'') is a species of dwarf lemur known from Ranomafana and Andringitra national parks and surrounding areas in southeastern Madagascar. The identification was based on comparison of mitochondrial and nuclear gene sequences with other members of the ''C. crossleyi'' group ('' C. andysabini'', '' C. crossleyi'', '' C. lavasoensis'' and an unnamed possible new species, "CCS2"). Individuals from this clade first came under genetic study in 1999 and were recognized as a new species in 2014, but it was not formally described until 2017. The lemur was named after mammalologist Colin Groves. Known from altitudes from 754 to 999 m, it is significantly larger than other members of the ''C. crossleyi'' group, with a 20 cm body length, a 29 cm tail, and a weight of 0.41 kg. While the conservation status of the new species has not yet been assessed, its presence in several national parks does not guarantee that it will not be threatened by deforesta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Groves' Dwarf Lemur
Groves' dwarf lemur (''Cheirogaleus grovesi'') is a species of dwarf lemur known from Ranomafana and Andringitra national parks and surrounding areas in southeastern Madagascar. The identification was based on comparison of mitochondrial and nuclear gene sequences with other members of the ''C. crossleyi'' group ('' C. andysabini'', '' C. crossleyi'', '' C. lavasoensis'' and an unnamed possible new species, "CCS2"). Individuals from this clade first came under genetic study in 1999 and were recognized as a new species in 2014, but it was not formally described until 2017. The lemur was named after mammalologist Colin Groves. Known from altitudes from 754 to 999 m, it is significantly larger than other members of the ''C. crossleyi'' group, with a 20 cm body length, a 29 cm tail, and a weight of 0.41 kg. While the conservation status of the new species has not yet been assessed, its presence in several national parks does not guarantee that it will not be threatened by deforesta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hairy-eared Dwarf Lemur
The hairy-eared dwarf lemur (''Allocebus trichotis''), or hairy-eared mouse lemur, is one of the most scarcely known lemurs. ''A. trichotis'' is a nocturnal lemur that is endemic to Madagascar. It was originally named by Albert Günther in 1875 as ''Cheirogaleus trichotis'' as part of the ''Cheirogaleidae'' family, or the dwarf lemurs. In 1967 Petter-Rousseaux and Petter reassigned the lemur to its own genus and is the now only member of the genus ''Allocebus.'' The hairy-eared dwarf lemur was thought to be extinct until its rediscovery in 1989 in a northeastern primary lowland rainforest. The population of these mammals is shown to be severely decreasing and largely fragmented throughout Northern and Eastern Madagascar rainforests; most likely due to hunting, trapping, slash-and-burn agriculture as well as habitat fragmentation. Discovery ''Allocebus trichotis'' is thought to have been discovered as early as 1875 by Albert Günther. The species was initially only studied fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montagne D'Ambre Dwarf Lemur
The Montagne d'Ambre dwarf lemur or Andy Sabin's dwarf lemur (''Cheirogaleus andysabini'') is a species of dwarf lemur known only from Amber Mountain National Park and the surrounding area in northern Madagascar. It was identified in 2005, but not formally described until 2015. It is an endangered species, at risk from deforestation Deforestation or forest clearance is the removal 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. The most concentrated ... and possibly hunting from nearby human populations. References {{Taxonbar, from=Q20965799 Mammals described in 2015 Dwarf lemurs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheirogaleus Andysabini
The Montagne d'Ambre dwarf lemur or Andy Sabin's dwarf lemur (''Cheirogaleus andysabini'') is a species of dwarf lemur known only from Amber Mountain National Park and the surrounding area in northern Madagascar. It was identified in 2005, but not formally described until 2015. It is an endangered species, at risk from deforestation Deforestation or forest clearance is the removal 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. The most concentrated ... and possibly hunting from nearby human populations. References {{Taxonbar, from=Q20965799 Mammals described in 2015 Dwarf lemurs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lavasoa Dwarf Lemur
The Lavasoa dwarf lemur (''Cheirogaleus lavasoensis'') is a small, nocturnal strepsirrhine primate and a species of lemur that is endemic to three small, isolated patches of forest on the southern slopes of the Lavasoa Mountains in southern Madagascar. Fewer than 50 individuals are thought to exist. Its habitat lies in a transitional zone between three ecoregions: dry spiny bush, humid littoral forest, and humid forest. First collected in 2001 and thought to be a subpopulation of the furry-eared dwarf lemur (''C. crossleyi''), it was not formally described until 2013. It is one of six species of dwarf lemur, though the research that identified it also suggested the existence of many more new species. Taxonomic history The Lavasoa dwarf lemur belongs to the genus ''Cheirogaleus'' (dwarf lemurs) within the family Cheirogaleidae. Between October 2001 and December 2006, researchers collected ten mature adults (five male and five female) along with six immature individua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mouse Lemur
The mouse lemurs are nocturnal lemurs of the genus ''Microcebus''. Like all lemurs, mouse lemurs are native to Madagascar. Mouse lemurs have a combined head, body and tail length of less than , making them the smallest primates (the smallest species being Madame Berthe's mouse lemur); however, their weight fluctuates in response to daylight duration. Lemurs and mouse lemurs were announced by the IUCN as the most endangered of all vertebrates. There were two known mouse lemur species in 1992; by 2016, there were 24. It was estimated that the 24 mouse lemur species evolved from a common ancestor 10 million years ago. Evolution of mouse lemurs is an example for adaptive radiation. Mouse lemurs are omnivorous; their diets are diverse and include insect secretions, arthropods, small vertebrates, gum, fruit, flowers, nectar, and also leaves and buds depending on the season. Mouse lemurs are considered Species complex, cryptic species—with very little morphological differences betwee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Primate
Primates are a diverse order of mammals. They are divided into the strepsirrhines, which include the lemurs, galagos, and lorisids, and the haplorhines, which include the tarsiers and the simians (monkeys and apes, the latter including humans). Primates arose 85–55 million years ago first from small terrestrial mammals, which adapted to living in the trees of tropical forests: many primate characteristics represent adaptations to life in this challenging environment, including large brains, visual acuity, color vision, a shoulder girdle allowing a large degree of movement in the shoulder joint, and dextrous hands. Primates range in size from Madame Berthe's mouse lemur, which weighs , to the eastern gorilla, weighing over . There are 376–524 species of living primates, depending on which classification is used. New primate species continue to be discovered: over 25 species were described in the 2000s, 36 in the 2010s, and three in the 2020s. Primates have large bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Fork-marked Lemur")
.jpg "Click for more on -> Primate")