It’s not easy to tell if someone has it.

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Terror in the skies.

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A surprisingly simple action can make a major difference.

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There's a price to pay.

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Our weekly science news roundup.

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A lesser-known problem we need to understand.

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The evidence is accumulating.

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Cases are becoming increasingly familiar.

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"These fossils finally close that chapter."

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"This is the first time we actually see one flickering."

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Compound 10 might be another way to attack the disease.

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We're not as random as we think.

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“It really makes me look forward to more exciting results in the future."

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More than one kind of treasure.

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Here's what to know about megacolon.

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We never knew about this.

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"Incredible animals we are only just starting to understand."

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Huge if true.

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"Exactly what it was designed to do."

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So what does it mean to be unconscious?

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