The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
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A group of kittens is called a "kindle".
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Denmark has twice as many pigs as there are people.
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The colossal squid has the largest eyes in the world.
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