Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Sloths take two weeks to digest their food.
243
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
Early American humans hunted car-size armadillos and used their shells for houses.
12
The reindeer is the only mammal that can see UV light.
17
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9