Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
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
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
One in three dog owners say they have talked to their pets on the phone.
427
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23