Female hyenas wear the pants in the family. They’re bigger and stronger than the males. And definitely much more aggressive. Heck, they even got balls. Really.

A female hyena has a pseudopenis, basically an enlarged clitoris, that they can erect at will. To mate, the meeker male has to insert his penis into her pseudopenis. That’s difficult for the males, but still nothing compared to the female having to give birth through a penis!

Biologist Laurence Frank describes something else that is strange about hyenas – the way they say hello to each other: