Lemuridae is a family of prosimian primates native to Madagascar, and one of four families commonly known as lemurs. These animals were thought to be the evolutionary predecessors of monkeys and apes, but this is no longer considered correct. The family gets its name from the Ancient Roman belief that the animals were ghosts or spirits ('lemures'), because many species are nocturnal.
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. Though the ruffed lemur species are the only lemurids that have true litters, consisting of anywhere from 2 to 6 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.
Lemur species in the Eulemur 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.
Fecal inoculum can be used to determine the rate and extent of in vitro fermentation of dietary fiber sources across three lemur species that differ in dietary profile: Varecia variegata, Eulemur fulvus and Hapalemur griseus
Oct 01, 2002; Nutrient Metabolism Fecal Inoculum Can Be Used to Determine the Rate and Extent of In Vitro Fermentation of Dietary Fiber Sources...