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  1. Artificial Intelligence

    More brainlike computers could change AI for the better

    New brain-inspired hardware, architectures and algorithms could lead to more efficient, more capable forms of AI.

    By Kathryn Hulick
  2. Archaeology

    Humans moved into African rainforests at least 150,000 years ago

    This oldest known evidence of people living in tropical forests supports an idea that human evolution occurred across Africa.

    By Bruce Bower
  3. Health & Medicine

    Can probiotics actually curb sugar cravings?

    Some companies claim that taking beneficial bacteria can reduce the desire for sugar. But the evidence comes from mice, not people.

    By Tina Hesman Saey
  4. Life

    A new book chronicles the science of life in the air 

    Carl Zimmer’s Air-Borne recounts centuries of aerobiology’s greatest moments and mistakes.