Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
There's a rare breed of pig that looks like a sheep.
14