Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Moths are unable to fly during an earthquake.
328
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Cows can sleep standing up, but they can only dream lying down.
745