There are approximately three chickens for every human on Earth.
13
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
One in three dog owners say they have talked to their pets on the phone.
427
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
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16