The Pistol Shrimp can snap its claws together to create a sound of 218 decibels, louder than as supersonic jet at full speed. It only lasts for 1 millisecond. The snapping action also creates a bubble that is greater than 5000 Kelvin, close to the surface temperature of the sun.
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Dogs have been man's pet for over 14,000 years.
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Domestic pigs average a top speed of about 11 miles per hour.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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