Anthropology 151 mid-term essay answers

Anthropology 151 mid-term essay answers - Anthropology 151...

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Anthropology 151 Mid-term Essay Answers 1) According to current DNA studies, scientists have found out that humans and apes’ share 98% of the same DNA. Scientists argue that since the DNA are so similar that they must have shared a common ancestor in the past. There must have been a divergent Evolution among their ancestors that brachiated into modern apes and humans. 2) When talking about arboreal heritage, it refers to an animal that spends most of their time in trees or bushes; commonly having the ability of Brachiation. Human ancestors, Homo habilis are thought to have some Brachiation skills with them; skeletal evidence show that they had longer arms than their legs. Looking at the biological order of humans, Primates, we see other animals such as apes. Apes have Brachiation skills and since apes and humans supposedly share common ancestors, humans must have been living in an arboreal environment as well. 3) Since there were footprints of three individuals, there may have been some group coordination. The Laetoli footprints also show proof of bipedal locomotion by Australopithecus Afarensis with no sign of knuckle impressions; instead they had signs of upright bipedalism. Looking at the footprints, a conclusion was made; their foot was more close to humans, not apes, with the existence of an arch. 4)
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This note was uploaded on 08/25/2008 for the course ANTH 151 taught by Professor Sheppard during the Spring '07 term at Hawaii.

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Anthropology 151 mid-term essay answers - Anthropology 151...

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