Notebook

  1. Archaeology

    A 2,000-year-old tattoo tool is the oldest in western North America

    The artifact is made of two pigment-stained cactus spines, and has been sitting in storage since its discovery in 1972.

    By Bruce Bower
  2. Oceans

    Oceans that are warming due to climate change yield fewer fish

    Warming water due to climate change is diminishing sustainable fishery yields in the world’s oceans.

    By Carolyn Gramling
  3. Health & Medicine

    50 years ago, people thought MSG caused ‘Chinese restaurant syndrome’

    In the 1960s, people blamed monosodium glutamate in Chinese food for making them sick, but the claim hasn't stood up to time or science.

    By Allie Wilkinson
  4. Artificial Intelligence

    Why a data scientist warns against always trusting AI’s scientific discoveries

    Artificial intelligence that helps make scientific discoveries needs to get better at admitting its uncertainty, Genevera Allen says.