Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
There are approximately three chickens for every human on Earth.
13
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
In Australia, there are spiders big enough to eat snakes.
20