Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Dolphins have names for one another.
18
Jumping fleas can accelerate 50 times faster than the space shuttle.
218