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
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
Giant Anteaters' front legs look like a panda.
48
When cats are happy, they may squeeze their eyes shut.
10
Cats and dogs can hear ultrasound.
350
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14