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?