Cats sleep for 70% of their lives.
8
Bats sleep 18-20 hours per day.
5
Cows can sleep standing up, but they can only dream lying down.
745
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18