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  1. Animals

    When were dogs domesticated? The oldest known dog DNA offers clues

    Two new studies suggest that genetically stable dogs were living among humans in Europe by about 14,000 years ago.

    By Tom Metcalfe
  2. Planetary Science

    A private moon lander challenges ideas about lunar volcanism

    New measurements from the Blue Ghost lander suggest that thin crust, not just radioactive heating, shaped the moon’s dark lava plains.

    By Lisa Grossman
  3. Neuroscience

    Clumps of mouse brain cells can learn to play a virtual game

    Sure, playing video game is fun. But the ability of tiny brain organoids to pick up a skill could provide insight into how healthy brains work.