Close up on the skull and curved back bones of the Chicago Archaeopteryx, shown under UV light with areas of soft tissues shown in light blue

How did birds evolve? The answer is wilder than anyone thought

Discoveries in Jurassic rocks reveal that birds were adept fliers earlier than scientists realized.

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A conceptual illustration of colourful flu viruses surrounding a human figure.

Influenza

Every year, there are about one billion cases of influenza globally, causing hundreds of thousands of deaths.
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