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Ruffed lemurs are typically described as multi-male groups with a fission-fusion social structure, [11] [13] [19] although this can vary by season and locality. [11] In a study done at Masoala Peninsula on red ruffed lemurs three levels of organization were identified and defined: communities, core groups, and subgroups.
Red ruffed lemurs grooming each other. The red ruffed lemur is a very clean animal and spends a lot of time grooming itself and in social grooming. The lower incisors (front teeth) and the claw on the second toe of the hind foot are specially adapted for this behavior. The lower incisors grow forward in line with each other and are slightly spaced.
This demonstrates that lemur species such as the lemur catta and the common brown lemur were forced to switch their primary diet to a group of secondary food sources. [ 9 ] 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.
Lemuridae contains 21 ruffed, ring-tailed, bamboo, and other lemur species in five genera. Lepilemuridae contains 25 sportive lemur species in a single genus. Dozens of extinct prehistoric lemuroid species have been discovered, though due to ongoing research and discoveries the exact number and categorization is not fixed. [ 1 ]
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The red lemur (Eulemur rufus), also known as the rufous brown lemur or northern red-fronted lemur, is a species of lemur from Madagascar. Until 2001, the species E. rufus was considered a subspecies of the common brown lemur , E. fulvus , [ 4 ] after which it was classified as its own species.
Lemurs were first formally classified in the 10th edition of Systema Naturae.. In the first volume of the 10th edition of Systema Naturae (1758), Carl Linnaeus, the founder of modern binomial nomenclature, created the genus Lemur to include three species: Lemur tardigradus (the red slender loris, now known as Loris tardigradus), Lemur catta (the ring-tailed lemur), and Lemur volans (the ...
The order Primates consists of 505 extant species belonging to 81 genera. This does not include hybrid species or extinct prehistoric species. Modern molecular studies indicate that the 81 genera can be grouped into 16 families; these families are divided between two named suborders and are grouped in those suborders into named clades, and some of these families are subdivided into named ...