Each card in a deck represents a king from history: Spades- King David, Hearts- Charlemagne, Clubs-Alexander the Great, Diamonds- Julius Caesar See more

The only "real" food that U.S. Astronauts are allowed to take into space is pecan nuts. See more

During warm weather hippopotamus's secrete sweat that is pink. This substance not only cools them down but also helps fight infections of the skin. See more

A bird "chews" with its stomach. See more

Some birds have been know to put ants into their feathers because the ants squirt formic acid, which kills parasites. See more

Owls swallow their prey hole because they have no teeth. After 12 hours they cough up the feathers, bones, and fur in a shape of a football pellet. See more

Eagles mate while airborne. See more

The female pigeon cannot lay eggs if she is alone. In order for her ovaries to function, she must be able to see another pigeon. See more

There is a species of bird, Antpitta avis canis Ridgley, that barks like a dog. See more