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
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23