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Author Question: Scientists have tried raising endangered whooping cranes in captivity by using s (Read 534 times) |
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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There are more bacteria in your mouth than there are people in the world.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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The average adult has about 21 square feet of skin.