Dogs can make about 100 different facial expressions.
18
All bonobo chimpanzees are bisexual!
29
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
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
Eagles mate while airborne.
44
7,000 new insect species are discovered every year.
30
Dragonflies can travel up to 60 mph.
25