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Study reveals how birds lost their penises

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  • 06-06-2013 11:27pm
    #1
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 91,799 Mod ✭✭✭✭


    http://www.bbc.co.uk/news/science-environment-22803344
    The loss of the organ could have given hens more control over reproduction.
    ...

    The study could also provide clues to other evolutionary conundrums, such as how snakes lost their limbs. And it might yield some potential answers to medical questions, say the researchers.

    Dr Cohn commented: "Genitalia are affected by birth defects more than almost any other organ.

    "Dissecting the molecular basis of the naturally occurring variation generated by evolution can lead to discoveries of new mechanisms of embryonic development, some of which are totally unexpected.


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