Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
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
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
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
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
Only 3% of bird species have penises.
0