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Politics : Evolution -- Ignore unavailable to you. Want to Upgrade?


To: Greg or e who wrote (67852)7/11/2015 10:11:19 AM
From: Solon  Respond to of 69300
 
We have noticed how embarrassed you get whenever biology reminds you of sex or procreation! No wonder you have such an animus against the sciences! I bet you got a big fat zero in biology!

Afraid of duck penises! TOO FUNNY!
  1. Duck Penis


Duck genitalia and mechanical barriers
Credit: Patricia L. R. Brennan1,2,*, Christopher J. Clark1,2 and Richard O. Prum

Ducks copulate through rape. As a result, females have evolved mazelike vaginas, complete with dead-ends to prevent insemination. Male ducks have evolved one of the longest penises in relation to body-size of any vertebrate as well has having a penis that takes on a corkscrew shape to better navigate the female’s vagina.

Even ducks need contraception to avoid unwanted pregnancies. Corkscrew mazes with dead-ends work pretty good but might be uncomfortable for humans...[Solon]