ANTHR101 Lecture Notes - Lecture 9: Simian, Brachiation, Postorbital Bone
Document Summary
It helps us gain knowledge on how our ancestor. Humans are not descended from apes but we share a common ancestor. Classifications based on morphology, behavior, and geography. Homology: similar traits due to genetic inheritance. Homoplasy: similar traits due to similar environment. Cladistics: focuses only on evolutionary relatedness using only homologous traits. Primitive traits: shared traits that are characteristic of an ancestral population. Derived traits: shared traits not present in the ancestral population. Their tails are smaller and not good for jumping far. Arms suggest they lived life in the trees. The only primates that eat only animal foods(insects, birds, bats, and snakes) They share a number of derived traits with the anthropoids. This includes new world monkeys and old world monkeys (monkey, apes, and humans) Grasping tail that functions like a fifth limb. Includes lesser apes, great apes & hominins: Continental drift>changing weather patterns>diversification of climates>new plant.