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bear : any of a family of large heavy mammals of America and Eurasia that have long shaggy hair, rudimentary tails, and plantigrade feet and feed largely on fruit, plant matter, and insects as well as on flesh — Webster

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Bears are carnivoran mammals of the family Ursidae. Bears are classified as caniforms, or doglike carnivorans. Although only eight species of bears are extant, they are widespread, appearing in a wide variety of habitats throughout the Northern Hemisphere and partially in the Southern Hemisphere. Bears are found on the continents of North America, South America, Europe, and Asia. Common characteristics of modern bears include large bodies with stocky legs, long snouts, small rounded ears, shaggy hair, plantigrade paws with five nonretractile claws, and short tails.

While the polar bear is mostly carnivorous, and the giant panda feeds almost entirely on bamboo, the remaining six species are omnivorous with varied diets. With the exception of courting individuals and mothers with their young, bears are typically solitary animals. They may be diurnal or nocturnal and have an excellent sense of smell. Despite their heavy build and awkward gait, they are adept runners, climbers, and swimmers. Bears use shelters, such as caves and logs, as their dens; most species occupy their dens during the winter for a long period of hibernation, up to 100 days. — Wikipedia

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Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • Panda loaned to France by China is pregnant...
    on July 20, 2021 at 6:09 pm

    Huan Huan, a giant panda on loan to France by Beijing since 2012, is pregnant again and could soon grace the country with her second cub, the Beauval zoo in central France said Tuesday.

  • Why do scientific discoveries take long to reach...
    on July 16, 2021 at 1:34 pm

    The results of scientific research can often bring considerable societal and economic benefits. But the path from the lab bench to a real-world application can take years, even for projects that are designed from the outset with a concrete use in mind. For instance, it took seven years for the pipetting robot developed by EPFL spin-off SEED Biosciences to reach the market, which it did in 2020. "Our robot lets scientists dispense cells one by one," says Eric Meurville, a SEED Biosciences […]

  • 1st female grizzly in 40 years collared in...
    on July 16, 2021 at 7:41 am

    Wildlife biologists have captured a female grizzly bear in Washington state for the first time in 40 years, fitting it with a radio collar so they can track its movements, officials said Thursday.

  • When fawns perceive constant danger, they almost...
    on July 15, 2021 at 12:12 pm

    Burnout. It is a syndrome that is said to afflict humans who feel chronic stress. But after conducting a novel study using trail cameras showing the interactions between white-tailed deer fawns and predators, a Penn State researcher suggests that prey animals feel it, too.

  • The UK wastes millions of tonnes of food every...
    on July 9, 2021 at 2:39 pm

    Food waste is a huge problem for the environment. Making and getting rid of excess food accounts for around 8-10% of greenhouse gas emissions. In fact, if global food waste were a country, it would rank third in the world for greenhouse gas emissions after China and the US. Globally, we throw away around a third of all food we produce.