Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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When you shave a guinea pig it looks like a little hippo.
19
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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Sharks, like other fish, have their reproductive organs in their chests.
248
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34