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Author Topic:   Anatomical Vestiges -- Evidence of Common Descent
molbiogirl
Member (Idle past 2668 days)
Posts: 1909
From: MO
Joined: 06-06-2007


Message 1 of 2 (417248)
08-20-2007 12:47 AM


Vash and I have been having a discussion on anatomical estiges over on The Definition for the Theory of Evolution.
He seems to think common descent is bunk.
Here is the anatomical vestiges link he has been referring to.
I proposed I start a new topic and that we discuss them one at a time, starting with human embryonic tails.
It's well known that, in rare cases, "true human tails" have been documented. It is also well known that a fetus grows, and the resorbs, an embryonic vestigial tail.
An atavism is the reemergence of a lost phenotypical trait from a past ancestor and not specific to the organisms parents or very recent ancestors.
Rational Response Squad
The tail's appearance and disappearance in utero is an atavistic trait. It's evidence of common descent.
What's your take on it, vash?

AdminNosy
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Message 2 of 2 (417294)
08-20-2007 3:49 AM


Thread copied to the Anatomical Vestiges -- Evidence of Common Descent thread in the Biological Evolution forum, this copy of the thread has been closed.

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