Banging your head against a wall uses 150 calories an hour. A cockroach will live nine days without its head, before it starves to death. The male praying mantis cannot copulate while its head is attached to it's body. The female initiates sex by ripping the male's head off. Some lions mate over 50 times a day.
Butterflies taste their own feet.
Elephants are the only animal that cannot jump. A cat's urine glows under a black light. An ostrich's eye is bigger than its brain. Starfish have no brains. Polar bears are left handed.