Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A giraffe's kick is so powerful that it can decapitate a lion.
216
Two dogs were among the Titanic survivors.
262
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
A cow produces around 200,000 glasses of milk in her lifetime.
373
In Australia, there are spiders big enough to eat snakes.
20
A dork is a whale's penis.
327