Sloths take two weeks to digest their food.

Guinea pigs and rabbits can't sweat.

Sharks and rays are the only animals known to man that don't get cancer. Scientists believe this has something to do with the fact that they don't have bones, but cartilage.

Deer can't eat hay.

Human birth control pills work on gorillas.

The odds of seeing three albino deer at once are one in seventy-nine billion, yet one man in Boulder Junction, Wisconsin, took a picture of three albino deer in the woods.

You can tell the sex of a horse by its teeth. Most males have 40, females have 36.

All shrimp are born male, but slowly grow into females as they mature.

You can house break an armadillo.

The giant crab of Japan can be as large as 12 feet across.