News

  1. Ecosystems

    Gut first

    A crawling caterpillar’s gut moves forward before the rest of its body does.

    By
  2. Animals

    Fearless tadpoles give invaders the edge

    Clueless larvae don’t heed the scent of nonnative turtles, giving newcomers an edge over native species, a European study finds.

    By
  3. Health & Medicine

    Diet and behavior changes may slow Alzheimer’s

    A new study in dogs finds that antioxidants and enriched lifestyle can ward off symptoms, and suggests brain plaques may not be the cause of the disease.

    By
  4. Health & Medicine

    Separating wheat from chaff in celiac disease

    Three partial proteins may trigger the T cell immune reactions that cause the symptoms of this intestinal ailment, new research shows.

    By
  5. Space

    Taming time travel

    New work is solving paradoxes by making the impossible impossible.

    By
  6. Health & Medicine

    Taking some of the doubt out of IVF

    Testing shows that a complex array of factors can be used to calculate the probability of in vitro fertilization success better than just using woman’s age as a guidepost.

    By
  7. Health & Medicine

    Gel shows promise against HIV

    Scientists have developed the first topical treatment that can prevent HIV infection among women.

    By
  8. Life

    Stuck in the past

    Reprogrammed stem cells retain molecular memories of their former identities, two new studies show.

    By
  9. Life

    This won’t hurt a bit

    A new technology delivers vaccines through a Band-Aid–like patch.

    By
  10. Chemistry

    Different strokes

    Though they share the same design, new micromachines are not a synchronized swimming team.

    By
  11. Psychology

    DNA variant may make heavy boozing a team sport

    People who inherit a particular gene variant may find it more appealing to drink a lot of alcohol when they see others doing so.

    By
  12. Life

    Animal sperm arose once

    A gene governing production of male reproductive cells goes back to a common ancestor that lived about 600 million years ago, a study finds.

    By