Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The Savannah is the largest domestic cat breed. It resembles a small leopard and behaves like a dog. They can grow up to 40 lbs, have an eight foot vertical jump, and can be trained to walk on a leash and play fetch.
17
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
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
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
The male seahorse carries babies and 'gives birth' to them instead of the female.
7