Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
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
Sharks have been on the planet longer than trees.
14
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
A cat can jump FIVE TIMES as high as it is tall!
371
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8