The head of a jellyfish is called the "Bell."
6
Cows can sleep standing up, but they can only dream lying down.
745
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 giraffe's kick is so powerful that it can decapitate a lion.
216