How humans got big brains, barbless penises
Missing chunks of DNA responsible for turning genes on and off help explain some key differences between chimpanzees and humans - including why humans have big brains and why the human penis is not covered with prickly spines, U.S. researchers said on Wednesday.
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#1 Mar 10, 2011
The human penis is not covered with prickly spines because it will be very uncomfortable for us to masturbate ... with all the scratches ... and even if we get pass that, but with our palms bloody how could we handle weapons to hunt ???
Sorry to make fun of this, but i see no mining in this research unless is made by a female who needs more sexual pleasuring and she doesn't have access to ribbed condoms.
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