Search Results for: Bears

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6,745 results
  1. Ecosystems

    Wild donkeys and horses engineer water holes that help other species

    Dozens of animals and even some plants in the American Southwest take advantage of water-filled holes dug by these nonnative equids.

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  2. Anthropology

    Seven footprints may be the oldest evidence of humans on the Arabian Peninsula

    In what’s now desert, people and other animals stopped to drink at a lake more than 100,000 years ago, a new study suggests.

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  3. Paleontology

    How massive long-necked dinosaurs rose to rule the Jurassic herbivores

    New dinosaur fossil dates to same time as a volcanic surge, suggesting ensuing changes in plant life allowed these long-necked giants to emerge.

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  4. Climate

    ‘The New Climate War’ exposes tactics of climate change ‘inactivists’

    In his new book, climate scientist Michael Mann draws the battle lines for a new phase of the struggle against climate change denialism.

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  5. Paleontology

    The dinosaur-killing asteroid impact radically altered Earth’s tropical forests

    The asteroid impact fundamentally reset the nature of Earth’s tropical rainforests, decreasing diversity at first and making them permanently darker.

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  6. Astronomy

    When James Webb launches, it will have a bigger to-do list than 1980s researchers suspected

    The James Webb Space Telescope has been in development for so long that space science has changed in the meantime.

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  7. Life

    Meatier meals and more playtime might reduce cats’ toll on wildlife

    Outdoor cats kill billions of birds and mammals each year. Simply satisfying their need to hunt or supplementing their diets could lessen that impact.

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  8. Life

    A newfound feathered dinosaur sported fuzz and weird rods on its shoulders

    A Brazilian dinosaur with stiffened pairs of ribbonlike feathers emerging from the shoulders is unlike any found before.

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  9. Life

    Only 3 percent of Earth’s land hasn’t been marred by humans

    A sweeping survey of terrestrial ecosystems finds that vanishingly little land houses all the animals it used to. Species reintroductions could help.

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  10. Space

    The asteroid Bennu’s brittle boulders may make grabbing a sample easier

    NASA’s OSIRIS-REx spacecraft is about to collect a bit of asteroid Bennu. Here’s why it’s good that new research suggests its boulders are brittle.

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  11. Earth

    How the Earth-shaking theory of plate tectonics was born

    Plate tectonics explains many of Earth’s geologic wonders and natural hazards — and may hold clues to the evolution of life.

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  12. Climate

    These women endured a winter in the high Arctic for citizen science

    Two women have spent the winter on the Norwegian archipelago of Svalbard to collect data for climate scientists around the world.

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