“Most mammals have a bone in their penis, but you will almost never see a penis bone on display, at least in a UK or European ...

By the time you’re an adult, you usually have 24 movable vertebrae (instead of 33) and the rest of the bones are fused together. While most people have a straight spine, some people have additional ...

It's pretty well established that cracking your knuckles doesn't have any adverse health effects, but what's really happening ...