The familiar sounds of your heart are made by the heart's valves as they open and close.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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Everyone has one nostril that is larger than the other.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
True-color image of layers of haze in Titan's atmosphere.