The List

  1. Animals

    Scientists name 66 species as potential biodiversity threats to EU

    North America’s fox squirrel, the venomous striped eel catfish and 64 other species are now considered invasive in the European Union.

    By Stephanie Parker
  2. Artificial Intelligence

    Ask AI: How not to kill online conversations

    Tips on not being a conversation-killer, courtesy of an AI that studied over 60,000 Reddit threads.

    By Maria Temming
  3. Health & Medicine

    For Ebola patients, a few signs mean treatment’s needed — stat

    A few criteria may help identify Ebola patients who need the most care.

    By Tina Hesman Saey
  4. Planetary Science

    Get your Pluto trivia down cold

    Eight months after visiting Pluto, the New Horizons spacecraft has delivered a wealth of details about the dwarf planet and its family of moons.