When dragonflies mate, their tails form a love heart.
22
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
Sharks have been on the planet longer than trees.
14
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
In the movie 'The Wizard Of Oz', Toto the dog's salary was $125 a week, while Judy Garland’s was $500 a week.
5