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
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
A giraffe's kick is so powerful that it can decapitate a lion.
216