The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
26
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
There's a lizard known as the 'Jesus Lizard' that can run across water.
11