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
A 42-foot sperm whale has about 7 tons of oil in it.
209
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71