Use argument supported by evidence for how the body is a system of interacting subsystems composed of groups of cells.

  1. Health & Medicine

    Peanuts for baby: A way to avoid peanut allergy?

    Making peanut products a baby food could head off life-threatening peanut allergies later, new data show.

  2. Health & Medicine

    Vision-ary high tech

    New devices are being developed to improve, restore or preserve the vision of people with eye diseases, such as glaucoma and macular degeneration. One device is a telescopic contact lens than can be zoomed with a wink.

  3. Animals

    Resilient hearts for deep-sea divers

    How do aquatic mammals have enough energy to hunt prey while steeply dropping their heart rate to stay underwater? A new study of dolphins and seals provides clues.

  4. Agriculture

    Livestock: A need to save rare breeds

    New studies and ongoing work highlight why society should save rare livestock breeds — and the part that technology can play.

  5. Environment

    Nano air pollutants strike a blow to the brain

    Most people think that air pollution poses the biggest risk to our lungs. In fact, pollution hits the brain too, sometimes by traveling a direct route — through our noses. These tiny pollutants can harm IQ and more.

  6. Tech

    Fashioning inks to ‘print’ tissues

    3-D printing may one day create life-saving tissues and organs for transplants. But first researchers are learning how to tailor cell-filled “inks” for use in inkjet printers.

  7. Health & Medicine

    Young blood: The elixir of youth?

    Old mice show improved memory when blood from young mice circulated through their brains, a new study finds. Other studies suggest one ingredient in that young blood might be all it takes to deliver benefits.

  8. Science & Society

    Dissect a frog and keep your hands clean

    Dissecting frogs can be a fun and useful way to learn about anatomy. If you don’t have a frog on hand, here are three smartphone apps that allow you have your frog legs and dissect them, too.

  9. Fossils

    Hot-blooded dinos? Try lukewarm

    New study finds these reptiles may have had an internal furnace that sort of resembled some sharks. It appeared to run neither hot nor cold.

  10. Genetics

    Owww! The science of pain

    No one likes pain, but it keeps us alive. That’s why scientists want to learn how best to coexist with this complicated and still somewhat mysterious sensation.

  11. Brain

    Hunger’s little helpers

    Astrocytes were thought to be nothing more than support cells for neighboring nerve cells. A new study suggests they do much more. These brain cells may help control appetite, too.

  12. Microbes

    Return of the giant zombie virus

    Scientists have discovered a new type of virus in Siberian soils. It's the largest virus ever discovered. And guess what: It could infect cells even after 30,000 years in cold storage.