Search Results for: Bears

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6,742 results
  1. Paleontology

    Insect bites in plant fossils reveal leaves could fold shut millions of years ago

    The 252-million-year-old fossil leaves have symmetrical holes, which suggest an insect bit through the leaves when they were folded.

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  2. Astronomy

    How a 19th century astronomer can help you watch the total solar eclipse

    Astronomer Maria Mitchell’s observations of total solar eclipses from more than 100 years ago hold tips that are still relevant for watching an eclipse.

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  3. Animals

    These brainless jellyfish use their eyes and bundles of nerves to learn

    No brain? No problem for Caribbean box jellyfish. Their seemingly simple nervous systems can learn to avoid obstacles on sight, a study suggests.

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  4. Planetary Science

    Granite likely lurks beneath the moon’s surface

    Without plate tectonics or water, granite is hard to make. But a 50-kilometer-wide hunk sits beneath the moon’s surface, lunar orbiter data suggest.

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  5. Paleontology

    Living fast may have helped mammals like ‘ManBearPig’ dominate

    Staying in the womb for a while but being born ready to rock may have helped post-dinosaur mammals take over the planet.

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  6. Tech

    50 years ago, a balloon circumnavigated the world for science

    A 1973 high-altitude flight kicked off an era of useful stratospheric balloon science. Some scientists worry that heightened concerns over alleged spy balloons might hamper that.

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  7. Life

    The Endangered Species Act is turning 50. Has it succeeded?

    After 50 years, this landmark law has kept many species alive — but few wild populations have recovered enough to come off the “endangered” list.

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  8. Archaeology

    Indigenous input revealed early hints of fiber making in the tropics

    To decipher marks on nearly 40,000-year-old stone tools and figure out what they were used for, researchers turned to the Philippines’ Pala’wan people.

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  9. 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.

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  10. Microbes

    Ancient bacteria could persist beneath Mars’ surface

    Radiation-tolerant microbes might be able to survive beneath Mars’ surface for hundreds of millions of years, a new study suggests.

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  11. Astronomy

    Alien life may be possible even at the Milky Way’s edges

    Phosphorus detected far from the Milky Way’s center seems to extend the zone where life could exist in the galaxy by thousands of light-years.

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  12. Psychology

    An apology to Indigenous communities sparks a mental health rethink

    The leading U.S. psychological association pledged to embrace Indigenous approaches to healing, which requires rethinking how to address mental health.

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