BIOL 121 Lecture Notes - Lecture 25: Prehensile Tail, Thermoregulation, Multiregional Origin Of Modern Humans

• School: UBC
• Department: Biology
• Course: BIOL 121
• Professor: Greg Bole

Document Summary

Biology 121 lecture 25 human evolution. Primates: prosimians lemurs, larsiers, lorisens, new world monkeys prehensile tails (e. g. capuchin, squirrel monkey, old world monkeys no prehensile tail (e. g. baboon, macaque, apes gibbon, (orang-utan, gorilla, chimp, humans = hominids of. Hominins: addipithecus first hominin after human/chimp split. 4. 4 5. 8 million years ago shares traits with great apes but bipedal advantages of bipedalism frees up hands for food/offspring, taller and can look for danger, sexual selection, walking/running, thermoregulation: austrolopithecus. Lived 1. 8 million 50k years ago. Migrated out of africa 1. 5 million years ago. Used fire and stone tools: homo heidelbergensis. In africa evolved into homo sapiens: homo neanderthals. ~230k 24k years ago in europe. Larger brain than modern humans: homo sapiens. 120k years ago in africa average brain size 1350ml. 50k years ago spread to europe, asia, australia and the. Human changes: bipedality, changes to skull, jaw and teeth, brain enlargement, social and cultural behaviour.