There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Parrot parents "name" their children with a signature call.
112
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
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
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217