Humans

  1. Health & Medicine

    Inspired medical research

    Teens make real advances in biomedical science.

    By Kellyn Betts
  2. Health & Medicine

    New life for a used organ

    Scientists transplant a rebuilt kidney into a rat.

    By Stephen Ornes
  3. Microbes

    Deadly new flu

    The germ responsible carries genes from other flu viruses.

    By Stephen Ornes
  4. Animals

    Infectious animals

    Critters spread many germs that can sicken each other — and even kill people.

    By Amanda Leigh Mascarelli
  5. Animals

    Explainer: People can sicken animals

    Wildlife can sometimes become infected with germs shed by people.

    By Amanda Leigh Mascarelli
  6. Life

    Stem cells: The secret to change

    Unusual, versatile cells hold the key to regrowing lost tissues.

    By Alison Pearce Stevens
  7. Health & Medicine

    Deadly new virus emerges

    A mysterious infection has been spreading for almost a year.

    By Janet Raloff
  8. Health & Medicine

    The AIDS virus that vanished

    Strong medicine may have rid a newborn of deadly HIV.

    By Stephen Ornes
  9. Environment

    Bad for breathing

    New study connects pollution to several common diseases that affect the lungs and airways.

    By Stephen Ornes
  10. Animals

    Cool Jobs: Museum science

    Samples collected long ago may hold answers to important questions in science and medicine today.

    By Sharon Oosthoek
  11. Brain

    Concussion: More than ‘getting your bell rung’

    This common brain injury can cause serious — and lasting — damage.

    By Alison Pearce Stevens
  12. Archaeology

    The return of a king

    The 15th century’s Richard III has returned — or at least, his bones have.

    By Stephen Ornes