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    1. Photo
      CreditMizumoto et al.

      Trilobites

      A School of Fish, Captured in a Fossil

      A slab of rock and the methods used to study it could offer clues to when a behavior common in fishes first evolved.

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      CreditUlet Ifansasti/Getty Images

      Trilobites

      A Signal in Giant Earthquakes That Could Save Lives

      The full power of the biggest temblors could be determined in as little as 10 to 15 seconds after they begin, a new study finds, and long before it ends.

  2. Profiles in Science

    Photo
    CreditErika Gerdemark for The New York Times

    Frances Arnold Turns Microbes Into Living Factories

    Instead of synthesizing new biochemicals from scratch, the Nobel Prize-winning chemist puts nature to the task — with astonishing results.

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    CreditRoyal Observatory, Greenwich/Science Museum Group

    Celebrating the Eclipse That Let Einstein Shine

    Before 1919, cosmology was as subjective as art criticism. A solar eclipse, and a patent clerk’s equations, changed everything.

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    CreditBrandon Thibodeaux for The New York Times

    Trump Administration Hardens Its Attack on Climate Science

    In a significant escalation, policymakers are seeking to undermine or discard research showing the most dire risks of inaction on climate change.

  5. Trilobites

    Photo
    CreditFrancois Gohier/Science Source

    Where Did the Right Whales Go?

    New evidence suggests that the endangered population lost much of a critical food source, but may be stabilizing slightly as it shifts territory to feed elsewhere.

Trilobites

More in Trilobites »
  2. Photo
    CreditNature Communications

    Seeing Red in the Fossil Record

    A discovery in a fossilized mouse could help scientists work out the true colors of dinosaurs and other creatures from prehistory.

  4. Photo
    CreditAndrew Scrivani for The New York Times

    How Making Chocolate Is Like Mixing Concrete

    Researchers delved into the physics of conching, the stirring process that transforms ground cacao into a meltingly smooth treat.

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    Measles Cases Reach Highest Level in More Than 25 Years, C.D.C. Says

    There have been 971 known cases of measles in the United States so far this year.

    By Liam Stack

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    Fighting the Gender Stereotypes That Warp Biomedical Research

    Female animals were once deemed too hormonal and messy for science. Some scientists warn it’s not enough to just use more female lab rats.

    By JoAnna Klein

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    In Turkey, Keeping a Language of Whistles Alive

    Before cellphones, Turkish “bird language” allowed farmers to communicate across long distances in the Pontic Mountains.

    By Malin Fezehai

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    I’m a Veteran Without PTSD. I Used to Think Something Was Wrong With Me.

    I couldn’t understand why I was able to move on from my traumatic experiences until I joined a PTSD study.

    By Melissa Thomas

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    An Experimental Ebola Cure May Also Protect Against Nipah Virus

    African green monkeys survived infection with the Nipah virus after they received remdesivir. The virus, a pandemic threat carried by bats, has killed dozens of people in Asia.

    By Donald G. McNeil Jr.

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    ‘Freedom Gas,’ the Next American Export

    The Department of Energy announced plans to boost exports of liquefied natural gas abroad, calling the fuel “molecules of U.S. freedom.”

    By Emily S. Rueb

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    Which Box Do You Check? Some States Are Offering a Nonbinary Option

    As nonbinary teenagers push for driver’s licenses that reflect their identity, a fraught debate over the nature of gender has arrived in the nation’s statehouses.

    By Amy Harmon

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    Oklahoma Faces Off Against J & J in First Trial of an Opioid Maker

    With Purdue Pharma and Teva settling the case, the state sought to hold J & J responsible for the broader opioid crisis. The company argued that it operated responsibly and lawfully.

    By Jan Hoffman

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    United Nations Says 80 Countries May Ramp Up Climate Pledges

    The countries may increase their climate goals, but the United Nations says that to avert extreme warming, an “exponential increase in ambition” is needed.

    By Somini Sengupta

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    Half of H.I.V. Patients Are Women. Most Research Subjects Are Men.

    Trials of vaccines and treatments have not included enough female participants. Now that scientists are exploring possible cures, the need to enroll women is greater than ever.

    By Apoorva Mandavilli

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