When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
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
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
19
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5