Lurch, a Watusi bull, had the largest horns in the world.
32
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 is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
A giraffe's kick is so powerful that it can decapitate a lion.
216