Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Moths are unable to fly during an earthquake.
328
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
Whales and dolphins can't taste anything other than salt.
11
Cows can sleep standing up, but they can only dream lying down.
745
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4