BIO 1700 Lecture Notes - Lecture 17: Population Pyramid, Malnutrition, Child Mortality
7 Apr 2017
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Document Summary
Compromise hypothesis: ability to accumulate fat has to do with us being hunter-gatherers, meat is important for the development of larger brains and less energy going towards digestion. Meat: advantages: concentrated resource of nutrients, non-toxic/ safe resource, resource that is easy to digest, more time for other activities (exploring, exploitation, sharing of food) Meat: inconveniences: hazardous/dangerous activity to acquire, competition with other predators, meat rots very quickly and can contain parasites (no fridges, shared meat with community because of this) Homo heidelbergensis (1907: in africa and europe, smaller brain compared to neanderthals, last common ancestor with homo sapiens and homo. 3rd wave: homo sapiens: culture became a strong evolutionary force. Hunter-gatherers: first mode of sustenance in modern humans. First community with social roles, permitted the accumulation of food surplus. The food surplus= richness, specialized roles of individuals and free time (where art, war, literature and religion started)
