Cats sleep for 70% of their lives.
8
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5