Giraffes have got long, strong tail bones.

长颈鹿有又长又强的尾骨。

Why do we still have tail bones and appendacies?

为什么我们还有尾骨和阑尾？

Like male nipples or the tail bone., T: Even the hiccups are a remnant of our past.

就像男性的乳头或尾骨。, T: 即使是打嗝也是我们过去的残余。

When the bones of these arms were first discovered, it was assumed that they would be of little use and were evolutionarily leftovers, much like a human's tiny tail bone.

当这些前肢的骨骼首次被发现时，人们认为它们的用处可能不大，并且是演化上的遗留物，很像人类的小尾骨。