Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
The reindeer is the only mammal that can see UV light.
17
A scorpion can hold its breath for up to 6 days.
19
Early American humans hunted car-size armadillos and used their shells for houses.
12