Penguins have a gland above their eye that turns saltwater into freshwater.
12
Sheep, goats, octopuses, and toads have rectangular pupils.
7
The head of a jellyfish is called the "Bell."
6
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
Sharks, like other fish, have their reproductive organs in their chests.
248
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14