Denmark has twice as many pigs as there are people.
66
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
Sloths take two weeks to digest their food.
243
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
The Savannah is the largest domestic cat breed. It resembles a small leopard and behaves like a dog. They can grow up to 40 lbs, have an eight foot vertical jump, and can be trained to walk on a leash and play fetch.
17
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12