The oldest pig in the world lived to the age of 68.
65
Armadillos can get leprosy.
13
An albatross can sleep while it flies!
36
A blue whale's aorta (the main blood vessel) is large enough for a human to crawl through.
52
Dogs have four toes on their hind feet, and five on their front feet.
179
Ducks will only lay eggs early in the morning.
36