It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
The Basenji dog is the only dog that is not able to bark.
4
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9