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  1. Archaeology

    This ancient stick may be the world’s oldest handheld wooden tool

    These 430,000-year-old wooden tools from Greece are a rare find and provide a glimpse at the technical know-how of our early human ancestors.

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  2. Animals

    Some vaccines are making progress in protecting vulnerable species

    Vaccines can be a crucial conservation tool. But getting shots to wildlife, and developing them in the first place, is tough.

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  3. The inner lives of animals

    Editor in Chief Nancy Shute discusses how scientists are beginning to study animals’ emotions and personalities — from joy to individual temperament.

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  4. Animals

    How Greenland sharks defy aging

    When it comes to bucking the biological ails of aging, humans could learn something from Greenland sharks.