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The black-and-white ruffed lemur (Varecia variegata) is an endangered species of ruffed lemur, one of two which are endemic to the island of Madagascar. Despite having a larger range than the red ruffed lemur , it has a much smaller population that is spread out, living in lower population densities and reproductively isolated .
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Ring-tailed lemur (Lemur catta). Lemuroidea is a superfamily of primates.Members of this superfamily are called lemuroids, or lemurs. Lemuroidea is one of two superfamilies that form the suborder Strepsirrhini, itself one of two suborders in the order Primates.
In fact, in captivity, it has been documented that red ruffed lemurs understand and even join in the alarm calls of black-and-white ruffed lemurs. [23] One minor difference between the vocal repertoires of these two species is in the pulse rate and frequency of the pulsed squawk , which is much faster and higher in red ruffed lemurs than in ...
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.
Only the ring-tailed lemur, the bamboo lemurs (genus Hapalemur), and the black-and-white ruffed lemur (Varecia variegata) are known to consume herbs. While Madagascar is rich in fern diversity, these plants are rarely eaten by lemurs. One possible reason for this is that ferns lack flowers, fruits, and seeds—common food items in lemur diets.
The black lemur (Eulemur macaco) is a species of lemur from the family Lemuridae.Like all lemurs, it is endemic to Madagascar.Originally, the species was thought to have two subspecies, [4] Eulemur macaco macaco and Eulemur macaco flavifrons, both of which were elevated to species status by Mittermeier et al. in 2008 to Eulemur macaco and Eulemur flavifrons respectively. [4]
Common brown lemurs are unique amongst Eulemur in that they exhibit little-to-no sexual dichromatism: in both males and females, the face, muzzle and crown are dark gray or black, with white or tan "cheeks" of varying thickness. Some individuals may have pale-colored eyebrow patches, and the eyes are almost always a deep orange-red.