News

  1. Health & Medicine

    Pregnancy risk from blood pressure drugs?

    Babies exposed in the first trimester of their mother's pregnancy to blood pressure drugs called ACE inhibitors are at an increased risk of birth defects.

    By Nathan Seppa

  2. Cells in bloodstream don’t refill ovaries

    Contrary to a report published last year, cells that circulate in a female mammal's blood don't seem to restock its egg supplies.

    By Christen Brownlee
  3. Anthropology

    Mexican find reveals ancient dental work

    A 4,500-year-old human skeleton found in Mexico represents the earliest instance in the Americas of intentionally modified teeth, apparently to create space for a ceremonial mouthpiece.

    By Bruce Bower
  4. Paleontology

    Sticky Subjects: Insights into ancient spider diet, kinship

    Remnants of a spider web embedded in ancient amber suggest that some spiders' diets haven't changed much in millions of years.

    By Sid Perkins
  5. Earth

    Toxic Leftovers: Microbes convert flame retardant

    Bacteria can break down a common flame retardant into more-toxic forms.

    By Aimee Cunningham

  6. Older but Mellower: Aging brain shifts gears to emotional advantage

    The aging brain reorganizes in ways that foster emotional stability and a tendency to favor positive emotions over negative ones.

    By Bruce Bower
  7. Ecosystems

    A Chronicle of Coasts: Study charts historical changes in seas, estuaries

    New research compares the long-term ecological impact of human activities in estuaries and coastal seas on three continents.

    By Ben Harder
  8. Animals

    Fishy Reputations: Undersea watchers choose helpers that do good jobs

    Coral reef fish use smart-shopper techniques of looking for satisfied customers before choosing a small fish to provide cleaning services.

    By Susan Milius
  9. Health & Medicine

    Proof of Protection: Condoms limit infection by cervical cancer virus

    Condom use reduces a woman's risk of being infected with human papillomavirus and of developing precancerous growths on the cervix.

    By Nathan Seppa
  10. Astronomy

    Magnetic Thrust: Fields force matter into black holes

    New observations confirm that magnetic fields provide matter with the last push to plunge into a black hole.

    By Eric Jaffe
  11. Health & Medicine

    Antidepressant drugs show link to diabetes

    People taking antidepressant medication might be at increased risk of developing diabetes.

    By Nathan Seppa
  12. Health & Medicine

    New drugs reduce blood sugar

    Two experimental drugs can lower blood sugar significantly in people with type 2 diabetes.

    By Nathan Seppa
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