Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
19
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
Cats recognise the voice of their owner, but never evolved to care.
22
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4