It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
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 hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Sharks have been on the planet longer than trees.
14
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71