John Pickrell

All Stories by John Pickrell

  1. Environment

    Australian fires have imperiled up to 100 species

    As massive wildfires consume huge swaths of Australia’s bush, untold species — many of them found nowhere else — are now threatened with extinction.

  2. Fossils

    Fossils show mammals’ rise to dominance after the dino-killing asteroid

    What happened to mammals after an asteroid wiped out the dinosaurs? Newfound fossils show how they grew in size, eventually dominating much of life on Earth.