what is the difference between a brown bear and a polar bear?
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Both names suck. Physically, polar bears are a bit bigger, longer, more streamlined, and have heavier fur and body fat. Brown bears have a shorter muzzle, a distinctive hump over their shoulders, and their color varies from a golden blonde to chocolate brown.
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Grizzly bears and brown bears are the same species (Ursus arctos), but grizzly bears are currently considered to be a separate subspecies (U. a. horribilis). Due to a few morphological differences, Kodiak bears are also considered to be a distinct subspecies of brown bear (U.
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Polar bears can live 20 to 30 years, but only a small percentage of polar bears live past 15 to 18 years. The oldest known polar bear in the Arctic lived 32 years.
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The geographic differences between these two subspecies has also led to differences in size. Generally Kodiak bears have a larger bone structure, and therefore larger frames than grizzly bears, though both species can reach very large sizes. ... Grizzly bears can weigh up to 1,150 pounds.
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Bears are in the sub-order of Caniforma, same as dogs, but in the infraorder (like a sub-sub-order) of Arctoidea. Bears are a family, called Ursidae with various species residing within that family. Bears are neither cats nor dogs, but they are closer to dogs than cats.
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The difference between the arctic and equator environments is when the brown bunnies are present in the equator environment, the wolves eat the white bunnies and the opposite in the arctic environment. ... Brown fur only provides an advantage if the bunnies are in an equator environment.
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All grizzly bears are brown bears, but not all brown bears are grizzly bears. ... In North America, brown bears are generally considered to be those of the species that have access to coastal food resources like salmon. Grizzly bears live further inland and typically do not have access to marine-derived food resources.
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The difference between elk and caribou goes beyond just their behavioral differences. Most people believe that they are all simply larger deer, which in a way is true, but the differences go further than that. While both are part of the deer family, they are certainly not like Bambi in any way at all.
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There are other impacts of climate change on polar bears, too. Warming has been linked to increases in contamination and exposure to diseases. Unusually warm weather in winter can cause dens to collapse, which females build to birth and protect their young.
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Brown bears are usually the bigger of the two, growing up to 1,500 pounds. ... Smaller brown bears are usually 500-900 pounds and black bears generally come in at 200-500. They also fluctuate in size due to hibernation and the feasting than fasting that it calls for, so size isn't the best indicator either.
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Polar bears hunt their preferred food of seals from the edge of sea ice, often living off fat reserves when no sea ice is present. Because of their dependence on the sea ice, polar bears are classified as marine mammals. ... Historically, the polar bear has also been known as the "white bear".
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Polar bears are classified as marine mammals because they spend most of their lives on the sea ice of the Arctic Ocean. ... Because of ongoing and potential loss of their sea ice habitat resulting from climate change, polar bears were listed as a threatened species in the US under the Endangered Species Act in May 2008.
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The giant panda is closely related to bears, especially polar bears, while red pandas are more closely related to ferrets. But both species share a common trait—they eat only bamboo (despite being classified as carnivores) and both have developed a false thumb to help them do so.
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Black bears occur in many hues of brown, and even shades of blue and white. Brown bears range from dark brown through light blond. Compared to black bears (Ursus americanus), brown bears (Ursus arctos) usually are larger, have a more prominent shoulder hump, shorter fuzzier ears, and longer, straighter claws.
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Most polar bears occur north of the Arctic Circle to the North Pole. There are some populations south of the Arctic Circle in the Hudson Bay of Manitoba, Canada. Polar bears live in Alaska, Canada, Russia, Greenland, and some northern islands owned by Norway, such as Svalbard.
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Kodiak bears are a unique subspecies of the brown or grizzly bear (Ursus arctos middendorffi).
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Polar bears live in the Arctic – in coastal lands, islands and seas above 70 degrees latitude. But while they hunt on ice, they are rarely seen close to the North Pole. Find ours in Arctic Tundra.