The elephant brain weighs about 6,000g.
274
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
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
A domestic cat can sprint at about 31 miles per hour.
274
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57