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Lemurs are primates belonging to the suborder Strepsirrhini. Like other strepsirrhine primates, such as lorises, pottos, and galagos, they share ancestral traits with early primates. In this regard, lemurs are popularly confused with ancestral primates; however, lemurs did not give rise to monkeys and apes, but evolved independently on ...
Lemurs share resemblance with other primates, but evolved independently from monkeys and apes. Due to Madagascar's highly seasonal climate, lemur evolution has produced a level of species diversity rivaling that of any other primate group. Living lemurs range in weight from the 30-gram (1.1 oz) mouse lemur to the 9-kilogram (20 lb) indri.
Archaeoindris fontoynontii is an extinct giant lemur and the largest primate known to have evolved on Madagascar, comparable in size to a male gorilla.It belonged to a family of extinct lemurs known as "sloth lemurs" (Palaeopropithecidae) and, because of its extremely large size, it has been compared to the ground sloths that once roamed North and South America.
Weighing 58 to 67 grams (2.0 to 2.4 oz), it is the largest mouse lemur, yet smaller than the world's smallest monkey, the pygmy marmoset, which ranges between 85 and 140 g (3.0 and 4.9 oz). Its genus , Microcebus , includes the smallest primates in the world.
Archaeolemur is an extinct genus of subfossil lemurs known from the Quaternary of Madagascar. [3] Archaeolemur is one of the most common and well-known of the extinct giant lemurs as hundreds of its bones have been discovered in fossil deposits across the island.
Monkey lemurs. Monkey lemurs, or baboon lemurs, share similarities with macaques; they have also been compared to baboons. [9] [15] Members of the family Archaeolemuridae, they were the most terrestrial of the lemurs, [9] [12] with short, robust forelimbs and relatively flat digits. They spent time on the ground, and were semi-terrestrial ...
The most striking feature of evolution of the pelvis in primates is the widening and the shortening of the blade called the ilium. Because of the stresses involved in bipedal locomotion, the muscles of the thigh move the thigh forward and backward, providing the power for bi-pedal and quadrupedal locomotion.
In isolation, the lemurs diversified and filled the niches often filled by monkeys and apes today. [14] In Africa, the lorises and galagos diverged during the Eocene, approximately 40 mya. [11] Unlike the lemurs in Madagascar, they have had to compete with monkeys and apes, as well as other mammals. [15]