An examination of ancient and modern skeletal samples gathered from around the world reveals that the shape and size of the female birth canal varies widely among different human populations. These ...

Austrian researchers reveal why snow monkeys don't suffer maternal deaths during childbirth, offering insights into safer ...

That’s like a human giving birth to a 7 year old ... the wrong direction because their quills can get caught in the birth canal on the way out. Speaking of birth canals, the spotted hyena ...