Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The reindeer is the only mammal that can see UV light.
17
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
Jumping fleas can accelerate 50 times faster than the space shuttle.
218