ANT 2511 Lecture Notes - Lecture 15: Quadrupedalism, Ardipithecus, Dentition
Document Summary
Humans and their ancestors since the time of divergence from a common ancestor with chimpanzees bonobos. Upper extremities and a skull that resembled apes, with a pelvis and lower extremities that looked human. The australopithecine lineage went extinct went extinct about: What do we think the robust australopithecines ate? grasses and sedges. Why is the fossil lucy so famous? it is the most complete early hominin fossil. They were bipedal on the ground but quadrupedal in the trees. Cline the distribution of a trait or allele across geographical space. Best hypothesis to describe evolution of dark skin through natural selection? folic acid is destroyed without uv protection. Why does the distribution of skin color follow a predictable pattern in the old world but not in the new world? people in the new world more recently migrated to where they now live. What was the selection factor for light skin? low solar radiation may cause rickets in dark skinned people.
