Why don’t humans have tails? Scientists find answers in an unlikely place
Alu elements are abundant in human DNA; the insertion in TBXT is ... walking and tail loss were functionally linked, with ...
Nature13y
Atavism: Embryology, Development and Evolution
In the case of human beings, the presence of a tail is a striking example of such ancestry. Many cases of people born with "tails" exist in the medical literature, but it is not always clear ...