Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Sloths take two weeks to digest their food.
243
Early American humans hunted car-size armadillos and used their shells for houses.
12
Sheep, goats, octopuses, and toads have rectangular pupils.
7