A giraffe can clean its ears with its 21-inch tongue. See more

The "sixth sick sheik's sixth sheep's sick" is said to be the toughest tongue twister in the English language. See more

In Tibet it is considered good manners to stick out your tongue at someone. See more

A crocodile's tongue is attached to the roof of its mouth and he cannot move it. See more

A crocodile cannot stick its tongue out. See more

A chameleon's tongue is twice the length of its body. See more

Like fingerprints, everyone's tongue print is different. See more

Our eyes are always the same size from birth, but our nose and ears never stop growing. See more

The strongest muscle in the body is the tongue. See more