ARCH 131 Lecture Notes - Lecture 5: Transpiration, Thermoregulation, Melanin
30 Sep 2016
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Document Summary
Tied to the development of sweating (transpiration) as an effective thermoregulation system in hot, dry climates. People have evolved darker skin closer to the equator. Big game hunting played a large role in life. Hunting would potentially explain two major trends in hominin evolution discussed earlier: Bipedalism: freed up the hands for the manufacture and use of hunting weapons. Encephalization: a need for increased cooperation and communication to be successful hunters led to a larger brain. Hunting was also long associated with other evolutionary trend and traditional ideas about human behaviour. As a response to the increased role that hunting tools took on tools for hunting/butchering replaced teeth. Based on sex men hunted and women had babies. Men go off to hunt, women stay at camp to look after the children. Hunters brought their kill back to the camp for sharing among the group. In other primate species there is very little food sharing, most take care of themselves.
