ANT 2511 Lecture Notes - Lecture 10: Foramen Magnum, Canine Tooth, Premolar
13 Apr 2018
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Different about humans opposed to other living great apes. Leg length: longer legs and shorter arms (flipped for other apes) Valgus knee (inward): inward slope in order to walk and shift weight. Foot arch: we land on heel and move to ball and push off using toes. Opposable big toe: quadrupeds have it, adaptation to living in trees; early hominids have some of these traits. Our canines wear from the top down aka apical wear. Muscle attachments reflect evolution of different food processing. Hunting hypothesis (charles darwin): diet was determining factor for him (we eat meat) Bipedalism (4-7 mya) and stone tool (2. 6 mya) -- txtbk. Earliest date for stone tools - 3. 3 mya (test answer) Last miocene (appearance of hominins) cooling and drying period causing forests to growing grasslands. Instead of hunting, provisioning becomes theme and lower interbirth periods. Males provide food to females, can carry more food if bipedal, long term pair bond fighting reduces (small canine)
