The reindeer is the only mammal that can see UV light.
17
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
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Squirrels forget where they hide about half of their nuts.
698
When you shave a guinea pig it looks like a little hippo.
19