The colossal squid has the largest eyes in the world.
4
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
Rattlesnake mating sessions have been known to last more than 22 hours.
232
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Lurch, a Watusi bull, had the largest horns in the world.
32
Cats and dogs can hear ultrasound.
350
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12