Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
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
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
Dogs have been man's pet for over 14,000 years.
224
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
When you shave a guinea pig it looks like a little hippo.
19
Tigers can see 6 times better at night than humans.
305