Sheep, goats, octopuses, and toads have rectangular pupils.
7
Early American humans hunted car-size armadillos and used their shells for houses.
12
Dolphins have names for one another.
18
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Lurch, a Watusi bull, had the largest horns in the world.
32
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
Lobsters have blue blood.
476