Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
26
Sloths take two weeks to digest their food.
243
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4
Dogs have been man's pet for over 14,000 years.
224
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10