ANTH 1132 Lecture Notes - Lecture 20: Homo Habilis, Canine Tooth, Prepared-Core Technique
17 Jul 2016
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Document Summary
* human origins: characteristics: bipedalism, small canine teeth, large relative brain size, tool manufacture and tool use. => stay as human characteristics due to how advanced the tools have gone. Energy efficient theory - gives greater energy and greater endurance. Viligance model - upright posture provides better view of the surroundings. Carrying model - having hands free allow hominids to carry food and infants to safer place. Thermoregulation model - walking upright decreases heat stress by exposing less of body to direct heat. Dentition => reduction in the size of canine teeth. Large relative brain size => primates have large brain size. Tool making and tool use => ex. * hominid evolution: homo habilis => 2. 5mya. Manufacture of stone tools (found evidence of animal bones that were butchered). Stone tools => oldowan tradition and lowekwian tools. After homo habilis, there was a huge spike on bigger brain size (by having big brains needs to look at calories intake).
