Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Sharks, like other fish, have their reproductive organs in their chests.
248
Early American humans hunted car-size armadillos and used their shells for houses.
12
The Basenji dog is the only dog that is not able to bark.
4
A dairy cow can produce more milk when listening to music.
446
A 42-foot sperm whale has about 7 tons of oil in it.
209