Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Cats and dogs can hear ultrasound.
350
In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
7
Early American humans hunted car-size armadillos and used their shells for houses.
12