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Polar bears are stocky, with a long neck, relatively small head, short, rounded ears, and a short tail. The male, which is much larger than the female, weighs 410 to 720 kg (900 to 1,600 pounds). It grows to about 1.6 metres (5.3 feet) tall at the shoulder and 2.2-2.5 metres in length. The tail is 7-12 cm (3-5 inches) long.
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Polar bears have become one of the world's most well known marine mammals. One surprising facts about polar bears is that their hair is actually translucent,.
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A thick coat of white fur helps bears survive in these latitudes. During the past few decades, scientists have speculated that this fur keeps bears warm because each hair routes warm sunlight to a polar bear's skin.
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Polar bears that are kept in captivity in more humid parts of the world can even get a green tinge to them, a result of algae growing inside the hollow hairโusually this can be relatively easily "cured" by soaking the bears repeatedly in saltwater.
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1. Why do polar bears have white fur? Polar bears have white fur so that they can camouflage into their environment. Their coat is so well camouflaged in Arctic environments that it can sometimes pass as a snow drift. Interestingly, the polar bear's coat has no white pigment; in fact, a polar bear's skin is black and its hairs are hollow.
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Family: Ursidae Genus: Ursus Species: maritimus Polar bear's scientific name, Ursus maritimus, means "sea bear" in Latin. Polar bears are called Nanuuq by Eskimos. Other names they are.
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Bear Facts Bears are solitary animals except for mothers with cubs, and when they are mating. Other bear facts include mating season depends heavily on the climate where they live; bears in colder climates tend to mate in spring or summer and cubs are born during the winter.
Polar bears have black skin and clear, hollow fur. Their clear fur
Polar bears are surprisingly dark skinned under their fur (although not as skinny as you might think) and this black pigment is expected to confer them some sort of heat gain advantage, meaning that it helps them trap heat from their surrounding air and keep them warm and cosy at all times.
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Polar bear hair shafts are actually hollow, which allows the fur to reflect back the light of the sun. Much like ice, this reflection is what allows these bears to appear white or even yellow at times. It's also thought that the transparency of their thick coats is designed to allow better heat absorption from the sun into their black skin.
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The course outer hair of a polar bear protects its undercoat and is called guard hair. It is these layers that are responsible for the actual color of the bear's fur. Every single strand of guard hair is transparent, meaning it has a hollow core with no colored pigments.
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Description. Polar bears are the largest carnivorous land mammals on Earth. They are about seven to eight feet long, measured from the nose to the tip of their very short tail. Male polar bears are much larger than the females. A large male can weigh more than 1,700 pounds, while a large female is about half that size (up to 1,000 pounds).
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Yes! Most sources indicate that the long, coarse guard hairs, which protect the plush thick undercoat, are hollow and transparent. The thinner hairs of the undercoat are not hollow, but they, like the guard hairs, are colorless. Male polar bear near the Beaufort Sea, Alaska, 2016. Steven C. Amstrup, USGS photographer, USGS Science Explorer .
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Polar bear fur inspired the creation of a new knittable heat-trapping fiber. The Arctic's extreme cold is no match for a polar bear's super-insulating fur. Humans could one day benefit from a.
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The polar bear (Ursus maritimus). Fat reserves allow polar bears to survive for months without eating. Cannibalism is known to occur in the species.. The newborns have woolly hair and pink skin, with a weight of around 600 g (21 oz). Their eyes remain closed for a month. The mother's fatty milk fuels their growth, and the cubs are kept.
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Dolores, the bear without fur, is among other female bears that were affected by sudden hair loss at a zoo in Leipzig, Germany. Some experts believe this was caused by a genetic defect, though the bears without hair do not seem to be suffering from any other afflictions. (Source: Daily Mail) Hairless Hedgehog
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The dimension ratio of the inner structure of the analyzed polar-bear hair was calculated at 1.625, close to the golden mean, which is also called Phi and is approximately 1.618; the golden.
