Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
Condoms were originally made of animal intestines or linen.
347
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Sloths take two weeks to digest their food.
243