It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
An African Baobab tree in South Africa, known as Big Baobab, has a circumference of 154 feet and even has a bar inside the trunk that can fit 60 people.
14
In 2013, the Netherlands scheduled 19 prisons to be closed due to a lack of criminals.
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