In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
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
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Cats recognise the voice of their owner, but never evolved to care.
22