Search Results for: Polar Bears

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573 results
  1. One polar bear stands and holds its paws up, while another walks along sea ice
    Animals

    Here’s how polar bears might get traction on snow

    Microstructures on the Arctic animals’ paws might offer extra friction that keeps them from slipping on snow, a new study reports.

    By Meghan Rosen
  2. A polar bear stands atop glacial mélange — a floating mishmash of icebergs, sea ice fragments and snow that exists year-round
    Ecosystems

    Some polar bears in Greenland survive on surprisingly little sea ice

    “Glacial mélange” could provide a last refuge for some bears as the Earth warms, but climate action is needed to preserve the species, researchers say.

    By Nikk Ogasa

  3. Readers ask about sea level rise, the universe’s first stars and more

    By Science News Staff
  4. illustration of a polar bear standing on a cliff as a rock falls toward a walrus standing on a rock below
    Animals

    Polar bears sometimes bludgeon walruses to death with stones or ice

    Inuit reports of polar bears using tools to kill walruses were historically dismissed as stories, but new research suggests the behavior does occur.

    By Gloria Dickie
  5. A landscape shot of the Last Ice Area, with the sun setting or rising over ice
    Earth

    Scientists are racing to save the Last Ice Area, an Arctic Noah’s Ark

    The Last Ice Area may be the final refuge for summer sea ice and the creatures that depend on it. Saving it is an ambitious goal with many hurdles.

    By Freda Kreier
  6. photo of a sea slug body next to its detached head
    Animals

    Here are 7 incredible things we learned this year that animals can do

    From wielding weapons to walking on the underside of water, these are the creature capabilities that most impressed us in 2021.

    By Erika Engelhaupt
  7. two museum works place a 8-meter-long model of a megalodon shark in a museum display
    Paleontology

    Megatooth sharks may have been higher on the food chain than any ocean animal ever

    Some megalodons and their ancestors were the ultimate apex predators, outeating all known marine animals, researchers report.

    By Asa Stahl
  8. illustration of bobcat-like ancient animal prowling in a forest
    Paleontology

    A new saber-toothed mammal was among the first hypercarnivores

    A 42-million-year-old jawbone with slicing teeth and a gap to fit saberlike teeth is pegged to a new species of the mysterious Machaeroidine group.

    By Sofia Quaglia
  9. polar bear
    Life

    ‘Wild Souls’ explores what we owe animals in a human-dominated world

    The new book Wild Souls explores the ethical dilemmas of saving Earth’s endangered animals.

    By Jonathan Lambert
  10. Pastoruri Glacier in the Peruvian Andes
    Climate

    ‘Ice Rivers’ invites you to get to know our world’s melting glaciers

    In her new book, Jemma Wadham brings readers along on her scientific expeditions to the world’s iciest places.

    By Carolyn Gramling
  11. illustration of a feathered theropod dinosaur eating a small furry mammal
    Paleontology

    Feathers may have helped dinosaurs survive the Triassic mass extinction

    New data show that dinosaurs were able to weather freezing conditions about 202 million years ago, probably thanks to warm feathery coats.

    By Carolyn Gramling
  12. black and white photo of a man in a cap with glasses leaning over a tabletop device while another man looks on
    Earth

    A WWII submarine-hunting device helped prove the theory of plate tectonics

    With a boost from World War II, the fluxgate magnetometer became a portable and invaluable tool.

    By Carolyn Gramling