BIO 1300 Lecture Notes - Lecture 3: Homo Ergaster, Homo Rudolfensis, Australopithecine
12 Feb 2018
School
Department
Course
Professor
Document Summary
Humans and chimps/bonobos share 95% of our dna in common. The 5% is responsible for the important difference in body, brains, and behaviours. Commonality represents our very close evolutionary relationship with each other. Differences are the different selective forces that have diverged us. The genes in which there have been differences have led to differences in anatomy etc. Up to 4 species (h. habilis, h. rudolfensis, h. ergaster, h. erectus: we will be discussing these 4 but there were more that coexisted at the time but not in the direct ancestry of the human. H. habilis and h. rudolfensis ~ 2. 5-1. 5 mya: the earliest of the 4. Brain > 600 cc: very rapid evolution of increased brain size. Development of language and rudimentary culture: throat structure and hyoid some form of language, scribbles, art work, etc, habilis tools. Also found animal bones with scratches from tools. Started with modifying stones in the environment.
