Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
Lobsters have blue blood.
476
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
There's a rare breed of pig that looks like a sheep.
14