Letters to the Editor

  1. Animals

    Readers dispute starfishes’ water-swirling abilities

    Volcanic eruptions, fast-freezing water, starfish physics and more in reader feedback.

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  2. Quantum Physics

    Readers amazed by Amasia

    Quantum spookiness, shifting landmasses and more in reader feedback.

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  3. Health & Medicine

    Readers respond to antibiotics, carbon bonds and more

    Allergic overreactions, the possibility of silicon-based life and more in reader feedback.

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  4. Animals

    Readers weigh in on mathematical animals and more

    Animal math, dinosaur digestion and more in reader feedback from our December 10, 2017, issue.

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  5. Paleontology

    Readers weigh in on dinos, dark matter and more

    Ancient bird calls, the search for dark matter and more in reader feedback.