A group of unicorns is called a blessing.
304
Bats sleep 18-20 hours per day.
5
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
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
Cows can sleep standing up, but they can only dream lying down.
745