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

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. Health & Medicine

    Teen uncovers new weapons to stop Huntington’s disease

    David Seong, an Intel Science Talent Search finalist, is studying how tiny pieces of genetic material might be used to lock up a dangerous protein in Huntington’s disease.

  7. Tech

    Branching out for safer water

    Clean drinking water could be only a tree branch away, a new study finds.

  8. Health & Medicine

    Teen finds the ‘shape’ of our beating hearts

    Kevin Lee used math to probe how the shape of a beating heart relates to electrical signals from the brain. He unveiled it at the 2014 Intel Science Talent Search.

  9. Brain

    ‘Study drugs’ can be dangerous

    The misuse of these ADHD medicines not only constitutes cheating, but they can become addictive and can mess with your head.

  10. Brain

    Explainer: Our bodies’ internal clocks

    Biological clocks determine hunger, sleepiness and other daily rhythms.

  11. Brain

    The teenage brain

    Adolescence triggers brain — and behavioral — changes that few kids or adults understand.

  12. Health & Medicine

    Blood does a body good

    Studies of the superfluid aid in the prevention and treatment of diseases.