Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
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
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
Gorillas can catch human colds and other illnesses.
205