Tigers can see 6 times better at night than humans.
305
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
In Australia, there are spiders big enough to eat snakes.
20
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
A dork is a whale's penis.
327
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
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