Idiot America is infested with millions of idiots. Our know-nothing evolution deniers can't explain this scientific fact.

• The true human tail. One of the most shocking – for creationists, anyway – human atavisms is the true human tail. On rare occasions, human infants are born with short, non-prehensile, but undeniably real tails, up to several inches in length and containing nerves, blood vessels, muscle fibers, and sometimes even extra vertebrae. They can move through voluntary muscle contraction.

In fact, all human embryos grow tails while in the womb, and normally they are reabsorbed before birth. The true human tail is the result when this does not happen. Usually they are surgically removed, although they are benign. For an evolutionary scientist, the reason why we grow them is obvious: we are descended from an ancestor species which had them. For creationists, who claim that human beings were created complete and separate as we currently are, it must be difficult to explain why we have so many vestigial structures that link us to other species of mammals.

Lots of stuff here, I recommend it: More vestigial organs