A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Lurch, a Watusi bull, had the largest horns in the world.
32
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
A dork is a whale's penis.
327
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456