BIOL 111 Lecture Notes - Lecture 24: Thumb, Galago, Depth Perception

• School: McGill University
• Department: Biology
• Course: BIOL 111
• Professor: Andrew Hendry

Document Summary

Lucy 3. 5 million years ago from ethiopia, most complete skeleton. Provided evidence that bipedalism evolved before brains fully evolved: early homo, homo habilis ---- handy/skillful. Shorter jaw, bigger brain: homo erectus ---- standing, believe to be first hominid to leave african (spread to. Eurasia) around 1. 6 million years to 250000 years ago. First fire use: as large as modern humans, but smaller brain, thick skull, recent homo, homo neanderthalensis, discovered in neander valley, germany, coexisted homo sapiens, but disappeared around 30000 years ago, possibly due to extermination by homo sapiens. Short, stalky but powerful build: brains larger than homo sapiens, homo sapiens, 0. 2 million years ago also rose in africa, also spread out of africa across eurasia and to rest of world. Larger brain than earlier homo species, favoring increasingly complex social life. Yes, 1. 5-2. 1% of dna in non-africans is estimated to be from.