Dogs have four toes on their hind feet, and five on their front feet.
179
There are more insects in one square mile of rural land than there are human beings in the world.
55
Hummingbirds can weigh less than a penny!
12
A marine catfish can taste with any part of its body.
38
Armadillos can get leprosy.
13
Woodpecker scalps, porpoise teeth and giraffe tails have all been used as money.
46