It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Sheep, goats, octopuses, and toads have rectangular pupils.
7
When you shave a guinea pig it looks like a little hippo.
19
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
A cow produces around 200,000 glasses of milk in her lifetime.
373
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Mosquitoes don't just bite you, they also pee on you.
11
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