Intriguingly, not all primates have tails. Humans, along with apes and their ancient kin show just a hint of this feature in the form of the coccyx. Xia, who is currently with the Broad Institute ...

Gorillas don't have them. And neither do chimps or any other ape — including us ... That's your tailbone — it's all that's left of our tail. And yes, it's sad and pathetic, and you can ...

Gorillas don't have them. And neither do chimps or any other ape - including us ... That's your tailbone - it's all that's left of our tail. And yes, it's sad and pathetic, and you can't wag ...