Squirrels forget where they hide about half of their nuts.
698
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
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