Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Bats sleep 18-20 hours per day.
5
Giant Anteaters' front legs look like a panda.
48
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
12
Cats recognise the voice of their owner, but never evolved to care.
22
An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
10