An ostrich's eye is bigger than its brain. Babies are born without knee caps. They don't appear until the child reaches 2 to 6 years of age. Banging your head against a wall uses 150 calories an hour. Butterflies taste with their feet.
Cats have over one hundred vocal sounds, dogs only have about ten.
Cat's urine glows under a black light. China has more English speakers than the United States. Donald Duck comics were banned in Finland because he doesn't wear pants. Dueling is legal in Paraguay as long as both parties are registered blood donors. Elephants are the only animals that can't jump.