Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
A cow produces around 200,000 glasses of milk in her lifetime.
373
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Squirrels forget where they hide about half of their nuts.
698
The oldest recorded elephant lived for 82 years.
213
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
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