Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
Gorillas can catch human colds and other illnesses.
205
Cats recognise the voice of their owner, but never evolved to care.
22
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20