Life

  1. Animals

    SOS: Call the ants

    Emergency ant workers bite at snares, dig and tug to free trapped sisters

    By Susan Milius
  2. Life

    Vegetarian spider

    The first known spider with a predominantly meatless diet nibbles trees.

    By Susan Milius
  3. Health & Medicine

    Neurons play Simon Says

    A new study finds evidence for mirror neurons in people.

    By Tina Hesman Saey
  4. Agriculture

    Pesticide potency can depend on bug’s clock

    The daily rhythms in gene activity can affect the toxicity of some poisons.

    By Janet Raloff
  5. Animals

    Tool use to crow about

    A pair of new studies indicates that crows can employ tools in advanced ways, including using stones to displace water in a container and manipulating three sticks in sequence to reach food.

    By Bruce Bower
  6. Life

    Death-grip fungus made me do it

    Infection may be driving ants to set their jaws in low-hanging leaves before they die.

    By Susan Milius
  7. Life

    DEET’s nastiness extends to humans

    Study finds the bug-repellent ingredient stopped an enzyme from doing its job.

    By Rachel Ehrenberg
  8. Life

    Tiny bird, tiny genome

    Study finds hummingbirds have pared-down DNA.

    By Rachel Ehrenberg
  9. Health & Medicine

    Adult mouse gut makes new neurons

    Scientists find newborn nerve cells in the intestines of adult mice, suggesting a new line of research for treating intestinal disorders.

    By Jenny Lauren Lee
  10. Earth

    On plant invaders and bat fungus

    Researchers discuss invasive species and bat-infecting fungi at the Botany & Mycology 2009 meeting

    By Susan Milius
  11. Animals

    Of mice and men

    Rapid anatomical changes in rodents linked to increases in human population density, precipitation.

    By Sid Perkins
  12. Animals

    New HIV-1 group

    Scientists have identified another variant of the virus that can cause AIDS.

    By Rachel Ehrenberg