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Science

Highlights

  1. T. Rex Dethroned? A Stegosaurus Fossil Sells for a Record $44.6 Million.

    The stegosaurus had been expected to sell for between $4 million and $6 million. It set a record in the contentious fossil trade, where scientists fear being priced out of the market.

     By Zachary Small and Julia Jacobs

    Apex, the stegosaurus fossil that sold at auction for $44.6 million.
    CreditSarah Yenesel/EPA, via Shutterstock

  2. At Paint Rock, Centuries of Native American Artistry

    Glyphs and pictographs at a site in Texas represent generations of settlement by Indigenous peoples.

     By Dimitri Staszewski and Franz Lidz

    CreditDimitri Staszewski for The New York Times

  3. A Fossil Mystery, Solved by a Spin

    Scientists could never explain how this fossil might have been a jellyfish. Then they flipped it on its head and discovered another animal.

     By Jack Tamisiea

    CreditJames Hagadorn, Graham Young, and Roy Plotnick

  4. SpaceX Rocket Fails in Orbit

    The malfunction, the first since 2016, ended a streak of more than 300 successful launches for the Falcon 9 rocket.

     By Kenneth Chang

    The failed rocket was carrying a load of Starlink internet satellites. Unusual ice buildup was seen on the second stage, right.
    Credit

  5. Watch These Supernovas Explode Across Time

    For the 25th anniversary of the Chandra X-ray Observatory, NASA produced ghostly time-lapse videos of two centuries-old stellar eruptions.

     By Dennis Overbye

    CreditNASA/SAO/CXC; Image Processing: NASA/SAO/CXC/J. Major
    Out There

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Pets

More in Pets ›

  1. How Science Went to the Dogs (and Cats)

    Pets were once dismissed as trivial scientific subjects. Today, companion animal science is hot.

     By Emily Anthes

    Max, una mezcla de pastor alemán, malinois belga y husky de 2 años, fue fotografiado este mes en el parque Greenlake de Seattle. Max, un perro callejero que fue rescatado en un estado demacrado, participa en el Arca de Darwin, una iniciativa científica comunitaria que investiga la genética y el comportamiento de los animales.
    CreditM. Scott Brauer para The New York Times

  2. Their Job Is to Help You Grieve Your Pet

    Though still rare, social workers in animal hospitals are growing in their ranks.

     By Katie Thomas and Jamie Kelter Davis

    Claire Johnson, a veterinary social worker, left, comforted Zorro, a 16-year-old cockapoo, as he was prepared for euthanasia at MedVet, a 24-hour pet care facility in Chicago.
    Credit

  3. The Pet ‘Superheroes’ Who Donate Their Blood

    Transfusions have become an important part of veterinary medicine, but cat and dog blood is not always easy to come by.

     By Emily Anthes

    Jolie, a blood donor, giving blood at a DoveLewis Blood Bank in Portland, Ore., last month.
    CreditMichael Hanson for The New York Times

  4. Why You’re Paying Your Veterinarian So Much

    People have grown more attached to their pets — and more willing to spend money on them — turning animal medicine into a high-tech industry worth billions.

     By Katie Thomas

    Heather Massey of Carlton, Ga., with her dog, Lunabear. She is still paying off a bill for scans and care six years after her previous dog, Ladybird, was diagnosed with brain cancer.
    CreditAudra Melton for The New York Times

  5. Are We Loving Our Pets to Death?

    Pet owners are treating their animal charges ever more like humans. But that isn’t good for pets, or for us, many experts argue.

     By Linda Baker

    The proliferation of dog strollers is one sign of a trend in which pets’ lives have become constrained and dependent on humans.
    CreditGraham Dickie/The New York Times

Trilobites

More in Trilobites ›

  1. Centuries of Avalanches Are Stored in Tree Rings

    Discovering evidence of deadly deluges of snow from the past could help protect people on mountains around the world, researchers say.

     By Katherine Kornei

    Researchers studying living pine trees near the Bankso, a ski resort in the Pirin Mountains of Bulgaria, found evidence of dozens of large avalanches that struck the area over two centuries.
    CreditBartek Wrzesniowski/Alamy

  2. Fearsome Sharks of Today Evolved When Ancient Oceans Got Hot

    More than 100 million years ago, scientists say, warming seas and reduced oxygen may have sent some sharks higher into the water column, where they evolved to be fierce and hungry.

     By Jeanne Timmons

    An artist’s concept of a Cretaceous Period shark leaping from the sea to attack a pterosaur.
    CreditMark P. Witton/Science Source

  3. Cosmic Research Hints at Mysterious Ancient Computer’s Purpose

    Scientists used techniques from the field of gravitational wave astronomy to argue that the Antikythera mechanism contained a lunar calendar.

     By Becky Ferreira

    A piece of the so-called Antikythera Mechanism, a 2nd-century B.C. device recovered from divers in 1901 off a remote Greek island in the Aegean.
    CreditLouisa Gouliamaki/Agence France-Presse — Getty Images

  4. This Bigheaded Fossil Turned Up in a Place No One Expected to Find It

    An ancient aquatic predator resembling a giant salamander turned up in an African fossil deposit, suggesting unwritten chapters of how animals moved onto land.

     By Asher Elbein

    An artist’s life reconstruction of Gaiasia jennyae, an eight-foot salamander-like predator that lived 280 million years ago.
    CreditGabriel Lio

  5. Videos Show Ants Amputating Nest Mates’ Legs to Save Their Lives

    The insects seem to know which injuries to treat as they engage in a behavior that seems almost human.

     By Annie Roth

    CreditBart Zijlstra

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Origins

More in Origins ›

  1. Early Humans Left Africa Much Earlier Than Previously Thought

    Scientists have found evidence of several waves of migration by looking at the genetic signatures of human interbreeding with Neanderthals.

     By Carl Zimmer

    Extracting fossilized Neanderthal bone for genetic sequencing at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, in 2008.
    CreditVolker Steger/Science Source

  2. How the Denisovans Survived the Ice Age

    A trove of animal bone fragments from a cave on the Tibetan plateau reveals how Denisovans thrived in a harsh climate for over 100,000 years.

     By Carl Zimmer

    Excavations at Baishiya Karst Cave on the Tibetan Plateau, where researchers say Denisovans lived for over 100,000 years, hunting or scavenging a wide range of animals that continue to live in the area.
    CreditDongju Zhang’s group/Lanzhou University

  3. How Flounder Wound Up With an Epic Side-Eye

    Flatfish offer an evolutionary puzzle: How did one eye gradually migrate to the other side?

     By Carl Zimmer

    Credit

  4. Do We Need Language to Think?

    A group of neuroscientists argue that our words are primarily for communicating, not for reasoning.

     By Carl Zimmer

    A network of regions become active when the brain retrieves words from memory, use rules of grammar, and carries out other language tasks.
    Creditvia Evelina Fedorenko

  5. Was This Sea Creature Our Ancestor? Scientists Turn a Famous Fossil on Its Head.

    Researchers have long assumed that a tube in the famous Pikaia fossil ran along the animal’s back. But a new study turned the fossil upside down.

     By Carl Zimmer

    The fossil of Pikaia, a creature that lived 508 million years ago and may have been a close relative of vertebrates.
    CreditMussini et al., Current Biology 2024

Climate and Environment

More in Climate and Environment ›

  1. For These Nearly Extinct Crocodiles, Life Found a Way

    The largest population of the endangered Siamese crocodiles this century hatched in Cambodia, a big moment for the conservation of a wild species once on the brink of extinction.

     By Austyn Gaffney

    A hatching Siamese crocodile.
    CreditBros Pov/Fauna & Flora

  2. Why the Era of China’s Soaring Carbon Emissions Might Be Ending

    Analysts are seeing promising signs from the world’s biggest emitter of greenhouse gases.

     By Max Bearak

    A solar farm in China. Last year China installed more solar panels than the United States has in its entire history.
    CreditGilles Sabrié for The New York Times

  3. We Mapped Heat in 3 U.S. Cities. Some Sidewalks Were Over 130 Degrees.

    Air temperature is just one measure of how heat affects cities and people. See how high surface temperatures, which bring additional risks, can get.

     By Raymond Zhong and Mira Rojanasakul

    CreditThe New York Times

  4. ‘My Property, My Trees’: New Tree-Cutting Law Divides N.Y. Town

    A Westchester County suburb updated its law about tree removals from yards, upsetting tree advocates, who want stricter rules, and residents who don’t want to be told what to do.

     By Hilary Howard

    Credit

  5. What’s Greenest and Cleanest When Nature Calls?

    Conventional toilet paper has a big environmental impact. We’ve got the lowdown on alternatives, from bamboo tissue to bidets.

     By Elizabeth Anne Brown

    CreditNaomi Anderson-Subryan

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