Uncategorized

  1. Archaeology

    Laser mapping shows the surprising complexity of the Maya civilization

    A large-scale lidar survey of Guatemalan forests reveals evidence of ancient, interconnected Maya cities.

    By Bruce Bower
  2. Life

    In China, a deadly strain of bird flu now easily infects ducks

    H7N9 evolved the ability to infect ducks just as a vaccine for chickens came into use.

    By Tina Hesman Saey
  3. Neuroscience

    Survey raises worries about how screen time affects kids’ brains

    A large study of U.S. children ties lots of screen time to lower thinking skills, but the relationship between the two is still unclear.

    By Laura Sanders
  4. Animals

    Manta rays have an unusual mouth filter that resists clogging

    Manta rays filter feed differently than other ocean creatures.