|Ring-tailed lemur (Lemur catta)|
Lemuridae is a family of strepsirrhine primates native to Madagascar, and one of five families commonly known as lemurs. These animals were once thought to be the evolutionary predecessors of monkeys and apes, but this is no longer considered correct.
Lemurids are medium-sized arboreal primates, ranging from 32 to 56 cm in length, excluding the tail, and weighing from 0.7 to 5 kg. They have long, bushy tails and soft, woolly fur of varying coloration. The hindlegs are slightly longer than the forelegs, although not enough to hamper fully quadrupedal movement (unlike the sportive lemurs). Most species are highly agile, and regularly leap several metres between trees. They have a good sense of smell and binocular vision. Unlike most other lemurs, all but one species of lemurid (the Ring-tailed Lemur) lack a tapetum lucidum, a reflective layer in the eye that improves night vision.
With most lemurids, the mother gives birth to one or two young after a gestation period of between 120 and 140 days, depending on species. The ruffed lemur species are the only lemurids that have true litters, consisting of anywhere from two to six offspring. They are generally sociable animals, living in groups of up to thirty individuals in some species. In some cases, such as the Ring-tailed Lemur, the groups are long-lasting, with distinct dominance hierarchies, while in others, such as the Common Brown Lemur, the membership of the groups varies from day to day, and seems to have no clear social structure.
- Genus Lemur
- Ring-tailed lemur, Lemur catta
- Genus Eulemur, true lemurs
- Common brown lemur, Eulemur fulvus
- Sanford's brown lemur, Eulemur sanfordi
- White-headed lemur, Eulemur albifrons
- Red lemur, Eulemur rufus
- Red-fronted lemur, Eulemur rufifrons
- Collared brown lemur, Eulemur collaris
- Gray-headed lemur, Eulemur cinereiceps
- Black lemur, Eulemur macaco
- Blue-eyed black lemur, Eulemur flavifrons
- Crowned lemur, Eulemur coronatus
- Red-bellied lemur, Eulemur rubriventer
- Mongoose lemur, Eulemur mongoz
- Genus Varecia, ruffed lemurs
- Genus Hapalemur, bamboo lemurs
- Genus Prolemur
- Greater bamboo lemur, Prolemur simus
- Genus †Pachylemur
This family was once broken into two subfamilies, Hapalemurinae (bamboo lemurs and the greater bamboo lemur) and Lemurinae (the rest of the family), but molecular evidence and the similarity of the scent glands have since placed the ring-tailed lemur with the bamboo lemurs and the greater bamboo Lemur.
Lemur species in the Eulemur genus are known to interbreed, despite having dramatically different chromosome numbers. Red-fronted (2N=60) and Collared (2N=50–52) Brown Lemurs were found to hybridize at Berenty Reserve, Madagascar.
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