• It is impossible to lick your elbow.

• A crocodile can't stick its tongue out.

• A shrimp's heart is in its head.

• In a study of 200,000 ostriches over a period of 80 years, no one reported a single case where an ostrich buried its head in the sand.

• It is physically impossible for pigs to look up into the sky.

• A pregnant goldfish is called a twit.

• More than 50% of the people in the world have never...