When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
There's a rare breed of pig that looks like a sheep.
14
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
A group of pugs is called a grumble.
10
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57