Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Sloths take two weeks to digest their food.
243
Squirrels forget where they hide about half of their nuts.
698