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Old 06-27-2016, 10:38 AM
MacLir MacLir is offline
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Join Date: Mar 2010
Posts: 543
One hypothesis I have not seen mentioned is the possibility of humans having been influenced by a span of littoral, semi-aquatic living. (Supported by some characteristics humans share with known aquatic and semiaquatic animals, but other great apes do not.)

In this theory, the enlargement served a functional purpose of allowing infants to "get a grip" in the face of body hair reduction in order to feed more easily.

One of the popular texts on the subject