For spotted hyenas, anatomy, sex, and birth are wildly (and weirdly) different than any other species. Elevated levels of testosterone cause the females to not only act extremely aggressive toward their male counterparts during sex, which is actually downright dangerous for the males, but also cause the females to develop pseudo-penises. These appendages are essentially an extended ****oris, some that can grow as long as 7 inches. But the problem with these hyena pseudo-penises is that it becomes the path through which the mother has to give birth through, a very tiny tube. The first time female hyenas give birth, they lose a lot of their young. In fact, 60% of hyena cubs die of suffocation inside the pseudo penis.
