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  1. Materials Science

    Bacteria make ‘spider silk’ that’s stronger than steel

    Part spider silk, the material is better than what some spiders make. Researchers think it might make the basis for surgical threads or unusually strong fabrics.

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  2. Animals

    Cockatoos learn from each other how to open garbage bins

    The bin-opening behavior is an example of social learning. It’s also the basis of a foraging culture. Learn more in this web comic.

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  3. Animals

    Let’s learn about the creatures of Halloween

    Check out the real-life vampires and zombies of the animal kingdom, and learn why people think ghosts and mummy curses are real.

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  4. Animals

    Scientists Say: Marsupial

    These mammals are known for riding around in a pouch on their mother’s belly, where they continue developing after they’re born.

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  5. Brain

    It doesn’t take a concussion for head hits to harm young brains

    Most head impacts while playing football do not cause concussions. Yet even lesser impacts take a toll in young athletes, scans of their brains show.

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  6. Science & Society

    Racism lurks in many plant and animal names. That’s now changing

    Racist legacies linger in everyday lingo for birds, plants and other organisms. Some scientists now see the chance to change that.

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  7. Health & Medicine

    Gender-affirming care improves the mental health of transgender youth

    Several states have tried to restrict access to gender-affirming health care for transgender youth. That goes against medical guidelines.

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  8. Earth

    Here’s how ice needles can sculpt natural rock art

    Striking stone patterns adorn remote cold landscapes the world over. The recipe for these adornments: Freeze, thaw, repeat.

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  9. Agriculture

    Potty-trained cows could help reduce pollution

    About a dozen calves have been trained to pee in a stall. Toilet training cows on a large scale could cut down on pollution, scientists say.

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  10. Chemistry

    Scientists Say: Electron

    Electrons are negatively charged particles. They are attracted to the positively charged particles in the center, or nucleus, of an atom.

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  11. Tech

    Will you learn better from reading on screen or on paper?

    Some studies find students don’t learn as well by reading on screens as from paper. But that's not always true. Here’s how to make the most of reading in either format.

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  12. Health & Medicine

    A single vape session can harm immune cells in the body

    Vaping creates molecules in the body that can attack cells and cause damage.

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