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  Whaling may have started 1,500 years earlier than already known

  Specialized whale-bone harpoons from southern Brazil dating back 5,000 years suggest that Indigenous groups...

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  What the new nutrition guidelines get wrong about fat

  New U.S. dietary guidelines promote eating full-fat foods and meats. But experts say nuts...

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  The brain’s response to a heart attack may worsen recovery

  In mice, blocking heart-to-brain signals improved healing after a heart attack, hinting at new...

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  Spider silk-making organs evolved due to a 400-million-year-old genetic oops

  An ancient ancestor of spiders and relatives doubled its genome about 400 million years...