Uncategorized

  1. Animals

    Homing pigeons may use a surprising navigation mechanism

    How animals navigate by Earth's magnetic field is hotly debated. New research in pigeons points to iron-laden liver immune cells as the compass.

    By Elizabeth Pennisi
  2. Life

    Can DEET attract mosquitoes? A lab study offers clues

    Lab experiments suggest mosquitoes can smell DEET and learn to associate it with food, but it’s unclear whether that happens in the wild.

    By Erin Garcia de Jesús
  3. Health & Medicine

    A $4 tongue swab test detects tuberculosis within 30 minutes

    The new test may catch active tuberculosis in those with low access to health care or who have trouble making the phlegm needed for traditional tests.