Uncategorized

  1. Earth

    Plowing Down the Amazon: Satellites reveal conversion of forest to farmland

    The clearing of jungle to create cropland is a major and previously underappreciated force behind deforestation in the Amazon region of Brazil, according to an analysis of satellite images.

    By Ben Harder
  2. Animals

    Hey, Roach Babe: Male cockroaches give fancy courting whistles

    Some male cockroaches whistle at females with surprisingly complex, almost birdlike whistles.

    By Susan Milius
  3. Ecosystems

    On the Rise: Siberian lakes—Major sources of methane

    Field studies suggest that Siberian lakes are a much larger source of atmospheric methane than had been previously recognized.

    By Sid Perkins
  4. Tech

    Size Matters: Biosensors behave oddly when very small

    There might be a limit to how small physicists should build tiny sensors that detect viruses and molecules.