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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.
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Your plane travel destroys polar bear habitat
on January 23, 2020 at 12:30 pm
A group of polar bear researchers wants you to do more than worry about the fate of these beautiful animals. They've calculated how much summer sea ice is melted per metric tonne of CO2 emissions. Then you can decide if the flight you're planning to take is worth destroying polar bear habitat.
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Battling longer, more intense fire seasons
on January 17, 2020 at 3:30 pm
Fires in Australia have been burning for months. At least 28 people and hundreds of thousands of animals have died, and more than 15 million acres have been destroyed as firefighters work to squelch the blaze. Penn doctoral student Clare Super has been closely watching news of the fires. Super is a third-year doctoral student in the Department of Anthropology in the School of Arts and Sciences at the University of Pennsylvania.
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Fires, then floods: How much can a koala bear?
on January 17, 2020 at 9:00 am
A week ago, koalas at an Australian wildlife park were in the path of raging bushfires. On Friday, they were soaking wet and being carried to safety from flash floods.
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Solar-powered barge a key 'interceptor' for...
on January 16, 2020 at 8:50 am
Scooping waste from a Malaysian river to stop it reaching the sea, a solar-powered barge named the "Interceptor" is the latest weapon in a global battle to rid the world's waters of plastic.
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High temperatures due to global warming will be...
on January 13, 2020 at 5:20 pm
Global warming, a major aspect of climate change, is already causing a wide range of negative impacts on many habitats of our planet. It is thus of the utmost importance to understand how rising temperatures may affect animal health and welfare. A research group from the Department of Biology, University of Copenhagen has just shown that tardigrades are very vulnerable to long-term high temperature exposures. Animals, which in their desiccated state are best known for their extraordinary […]