Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Sloths take two weeks to digest their food.
243
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
The colossal squid has the largest eyes in the world.
4
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Baks the blind boxer has a seeing eye goose named Buttons; a four-year-old goose who leads the pup around everywhere either by hanging onto him with her neck, or by honking to tell him which way to go.
16
In Australia, there are spiders big enough to eat snakes.
20