Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
A group of kittens is called a "kindle".
10
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20