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
When dragonflies mate, their tails form a love heart.
22
The Basenji dog is the only dog that is not able to bark.
4
Squirrels forget where they hide about half of their nuts.
698
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Cows can sleep standing up, but they can only dream lying down.
745