Humans walking on all fours is not backward evolution

16 julio 2014

Five siblings in the family, who live in a remote corner of Turkey, walk exclusively on their hands and feet. Since they were discovered in 2005, scientists have debated the nature of their disability, with speculation they represent a backward stage of evolution. An anthropologist finds quadrupedal humans with Uner Tan Syndrome do not walk in the diagonal pattern characteristic of nonhuman primates such as apes and monkeys.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TzpSdGzvSkk/140716151122.htm

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