Sloths take two weeks to digest their food.
243
When cats are happy, they may squeeze their eyes shut.
10
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
The elephant brain weighs about 6,000g.
274
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Female kangaroos have three vaginas.
2
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