Condoms were originally made of animal intestines or linen.
347
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
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10
Alligators can live up to 100 years.
337
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12