Denmark has twice as many pigs as there are people.
66
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
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
Parrot parents "name" their children with a signature call.
112
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Bats sleep 18-20 hours per day.
5