Sheep, goats, octopuses, and toads have rectangular pupils.
7
Penguins have a gland above their eye that turns saltwater into freshwater.
12
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Condoms were originally made of animal intestines or linen.
347
There are approximately three chickens for every human on Earth.
13
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The head of a jellyfish is called the "Bell."
6