BIOL 111 Lecture Notes - Lecture 22: Amygdala, Prehensile Tail, Denisovan

• School: McGill University
• Department: Biology
• Course: BIOL 111
• Professor: All

Document Summary

Highly social reduced brood size and extended parental care. Once found on all continents, but now just madagascar and se asia. Lemurs in madagascar have radiated, not all found in trees and some are diurnal. Loris species was thought to be extinct since 1939, but was recently seen. Ie: tarsier its eyes are heavier than its brain! Prehensile tail = tail used to grasp/hold objects: not present in old world monkeys, present in most new world monkeys. New world monkeys also have flat noses and tend to be arboreal. Velvets: are part of both new and old world species. Gibbons: smaller than other apes, mostly arboreal. Orangutans: too large to cross from one tree to another by the branches and must go down to the ground and walk between them. African apes include gorillas, chimpanzees, hominids. (include humans) In 2009, fossils of ardipithicine ancestor uncovered dating back 4. 4 mya.