Sexual reproduction may be roughly a billion years old, but we're still learning more about it.
via Discovery News http://news.discovery.com/human/10-sexiest-stories-2013-131230.htm#mkcpgn=rssnws1
via Discovery News http://news.discovery.com/human/10-sexiest-stories-2013-131230.htm#mkcpgn=rssnws1
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