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  1. Health & Medicine

    4 answers to key questions about the monkeypox outbreak

    Monkeypox has cropped up around the world, but it doesn’t spread easily like the coronavirus and most people probably don’t need to be concerned.

    By Tina Hesman Saey
  2. Archaeology

    Lasers reveal ancient urban sprawl hidden in the Amazon

    South America’s Casarabe culture built a network of large and small settlements in what’s now Bolivia centuries before the Spanish arrived.

    By Bruce Bower
  3. Neuroscience

    Headbutts hurt the brain, even for a musk ox

    Though musk oxen are built to bash, a study of the headbutters turned up signs of brain damage. But that may not be catastrophic for the bovids.