ANTHR101 Study Guide - Midterm Guide: Homo Erectus, Homo Habilis, Homo Heidelbergensis

• School: University of Alberta
• Department: Anthropology
• Course: ANTHR101
• Professor: Dan Syrotuik

Document Summary

1. besides bipedalism, what marks a watershed in human evolution? swinging of the arms. recession of the nose. brain expansion. shrinking of the pelvis: as a scientist, you are studying the evolution of the jaw in the homo species. Eating fruits and berries produced a chemical in the body that eventually made the jaw recess. Food became easier to chew, so those with small jaws could survive just as easily as those with large jaws. Those with smaller jaws were considered more attractive, mated more often, and produced more children. As early forms of dental care began, decaying teeth were removed and a smaller jaw formed as a result: a scientist has discovered the remains of a corpse that appears to date back 2. 3 million years ago. Homo erectus: frank is examining the possible hominid, orrorin tugenensis, for evidence of bipedalism. H. habilis may have left africa before h. erectus. H. erectus evolved independently in europe and asia.