Sheep, goats, octopuses, and toads have rectangular pupils.
7
There are approximately three chickens for every human on Earth.
13
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Sharks have been on the planet longer than trees.
14
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Cats and dogs can hear ultrasound.
350
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10