All the Facts

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The largest cave in the world (the Sarawak Chamber in Malaysia) is 2,300 feet (701 meters) long, 980 feet (299 meters) wide, and more than 230 feet (70 meters) high.
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Boron nitride (BN) is the second hardest substance known to man.
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Dogs nose prints are as unique as human fingerprints and can be used to identify them.
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The first electronic digital computer (called ENIAC - the Electronic Numerical Integrator and Calculator) was developed in 1946 and contained over 18,000 vacuum tubes.
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Humpback whales create the loudest sound of any living creature.
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Giraffes have no vocal cords and their tongues are blue-black in color.
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You can tell a turtle’s gender by the noise it makes. Males grunt and females hiss.
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Butterflies have two compound eyes consisting of thousands of lenses, yet they can only see the colors red, green and yellow.
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Oysters can change gender depending on which is best for mating.
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The hottest planet in the solar system is Venus, with an estimated surface temperature of 864 F (462 C).
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The largest meteorite crater in the world is in Winslow, Arizona. It is 4,150 feet across and 150 feet deep.
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The largest man-made lake in the U.S. is Lake Mead, created by Hoover Dam.
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Because beavers’ teeth never stop growing, they must constantly gnaw on objects to keep them at a manageable length. Their teeth would eventually grow into their brain if they didn’t maintain them.
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Koala bears almost exclusively eat only eucalyptus leaves and nothing else.
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Elephants can smell water up to 3 miles away. They are also one of the three mammals that undergo menopause – the other two being humpback whales and human females.
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A cat has 32 muscles in each ear.
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To escape the grip of a crocodile’s jaw, push your thumb into its eyeball – It will let you go instantly.
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Tigers not only have stripes on their fur, they also have them on their skin. No two tigers ever have the same stripes.
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Kangaroos use their tails for balance.
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Bats are the only mammals that can fly.
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