Writer's Block: Nature Gone Wild

Field mice always sleep facing northwest. Kangaroos can't walk backwards. Female hyenas have penises. Let's face it, nature is weird. What's the strangest thing you know about the animal kingdom? Submitted by kaley_93 <input ... > View other answers

What was that last one? D:

Um... Male seahorses are the ones that get pregnant. That's the only interesting thing I know. I should really read up on some of that stuff.

Isn't there a fish that can change its gender? ... I think there is. And a frog. Then there's the fact that Bluebirds aren't really blue. I guess I do know some weird things. The strangest has to be that gender-changing fish, yep.