The elephant brain weighs about 6,000g.
274
Whales and dolphins can't taste anything other than salt.
11
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
Dolphins have names for one another.
18
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
Dogs have been man's pet for over 14,000 years.
224