How & why did the penis evolve?

Subject: How & why did the penis evolve?

Date: Wed Jul 28 14:52:35 1999
Posted by Winnie Allingham
Grade level: grad (non-science) School: Discovery Channel Canada
City: Toronto State/Province: ON Country: CA
Area of science: Evolution
ID: 933191555.Ev

Message:


Birds have no penises, and I'm pretty sure fish don't. The 
penis, then, is a rather recent (in the grand scheme of things) 
evolutionary adaptation. What advantages does a penis give us 
over, say, the way birds reproduce? Can you provide any links to 
sites on this subject?

Re: How & why did the penis evolve?

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