The elephant brain weighs about 6,000g.
274
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
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Mosquitoes don't just bite you, they also pee on you.
11