Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Penguins have a gland above their eye that turns saltwater into freshwater.
12
The reindeer is the only mammal that can see UV light.
17
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
Jellyfish as a species are actually older than dinosaurs and sharks.
383
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27