The seahorse is the only fish to have a neck.
12
The katydid bug hears through holes in its hind legs!
110
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Lobsters have blue blood.
476
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 penguin is the only bird that can swim, but cannot fly.
1
An adult giraffe's tongue is 17 inches long.
28