Woodpecker scalps, porpoise teeth and giraffe tails have all been used as money.
46
Hummingbirds can't walk.
32
Alligators can live up to 100 years.
337
A bird 'chews' with its stomach.
33
Male monkeys lose the hair on their heads in the same way men do.
41
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109