The octopus does not have a blind spot.
273
The colossal squid has the largest eyes in the world.
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
Condoms were originally made of animal intestines or linen.
347
Cows can sleep standing up, but they can only dream lying down.
745
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
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