Vol. 191 No. 13
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More Stories from the July 8, 2017 issue

  1. Animals

    Seabirds use preening to decide how to divvy up parenting duties

    Seabirds in poor condition may communicate this information to their partner by delaying or withholding preening.

  2. Neuroscience

    Brains encode faces piece by piece

    Cells in monkey brains build up faces by coding for different characteristics.

  3. Health & Medicine

    When preventing HIV, bacteria in the vagina matter

    Vaginal bacteria affect how well microbicide gels used to prevent HIV work.

  4. Life

    When it comes to the flu, the nose has a long memory

    Mice noses have specialty immune cells with long memories.

  5. Health & Medicine

    Choosing white or whole-grain bread may depend on what lives in your gut

    Gut microbes determine how people’s blood sugar levels respond to breads.

  6. Astronomy

    Einstein’s light-bending by single far-off star detected

    A measurement so precise Einstein thought it couldn't be done has demonstrated his most famous theory on a star outside the solar system for the first time.

  7. Climate

    Climate change might help pests resist corn’s genetic weapon

    Rising temperatures may allow pests to eat corn that is genetically modified to produce an insect-killing toxin.

  8. Health & Medicine

    Therapy flags DNA typos to rev cancer-fighting T cells

    Genetic tests help identify cancer patients who will benefit from immune therapy.

  9. Physics

    Faux particles commit physics faux pas

    Quasiparticles present in a solid material break the rules of particle physics.

  10. Physics

    Water circling a drain provides insight into black holes

    Water waves scattering off a vortex can exhibit rotational superradiance, an effect predicted to appear in black holes.

  11. Planetary Science

    Jupiter’s precocious birth happened in the solar system’s first million years

    Jupiter formed within the first million years of the solar system, according to meteorite measurements.

  12. Health & Medicine

    New kind of ‘tan in a bottle’ may one day protect against skin cancer

    A drug for activating melanin production without using ultraviolet radiation works in human skin samples.

  13. Life

    Ancient DNA shakes up the elephant family tree

    DNA from straight-tusked elephant fossils is forcing scientists to reconsider the history of elephant evolution.

  14. Earth

    Magma stored under volcanoes is mostly solid

    Ancient zircon crystals provide clues about the magma that fuels volcanic eruptions.

  15. Health & Medicine

    Bones make hormones that communicate with the brain and other organs

    Bones send out hormone signals that chat with other parts of the body, studies in mice show. What influence these hormones have in people, though, remain a mystery.

  16. Animals

    The blue wings of this dragonfly may be surprisingly alive

    The wings of adult morpho dragonflies show tiny respiratory channels that may support a complex of nanostructures that shine blue.

  17. Physics

    50 years ago, a millionth of a degree above absolute zero seemed cold

    Today, scientists have reached temperatures less than a billionth of a degree above absolute zero.

  18. Animals

    This glass frog wears its heart for all to see

    A newly discovered glass frog species has skin so clear that it reveals most of the animal’s internal organs, including the heart.