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
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
-12
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
The octopus does not have a blind spot.
273
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4