It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
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When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
The cat brain weighs about 30g.
167
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
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17