Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
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
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Ants tend to survive in a microwave because they find the coolest spot and wait!
17