What is the first image that comes to mind when you think about polar bears? Most people think of polar bear cubs sliding down snow hills guzzling bottles of Coke. However‚ in my mind I see large majestic animals struggling to survive in the wild as the home around them is destroyed by climate change. Polar bears (genus: ursus‚ species ursus maritimus)‚ are one of the few large mammals that are able to survive frigid temperatures that reach as low as minus sixty-nine degrees Celsius due to their
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Polar Bears Suffering: How Global Climate Change is Affecting Their Home Keelei Sage BIO 240 12:30 pm T/Th Dr. Zanatta Fall 2012 When I was about nine-years old I went to the Detroit Zoo for the first time‚ and I remember the best part was getting to go inside the big tunnel and see the polar bears and seals swimming all around me. It was on of the greatest experiences from my childhood‚ and I want my children to be able to have the same experience. Polar bears are one of the most interesting
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In the articles "The Anglerfish Ambush Predator of the Deep"‚ by Larry Brown and "Polar Bear"‚ by Shandra Brady I learned how anglerfish and polar bears adapt to their enviornments. Anglerfish live deep in the sea. Polar bears live in the icey cold artic. These are both hard places to adjust to. Anglerfish have fang-like teeth that are angeled inward for efficent prey grabbing. Female anglerfish have a spine that resembles a fisshing pole sticking out of their back called an "illicium" and at the
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The polar bear‚ also known as the white bear‚ northern bear‚ or sea bear‚ is a large bear native to the Arctic. It is one of the two largest land carnivore species and the top predator within its area. It is well adapted to its habitat: it has thick blubber and fur to insulate to it against the cold as well as white colored fur that camouflages it from its prey. The polar bear hunts well on land‚ on the sea ice‚ as well as in the water. The polar bear is a circumpolar species found in and around
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relationship and hybridization of brown bears (Ursus arctos) and polar bears (Ursus maritimus). Fast morphological evolution has been seen over the years throughout mammals of the earth‚ as it is an important driver of specialization and speciation. Ursus‚ is the genus in the family of Ursidae (bears) that includes polar bears (Ursus arctos)‚ black bears (Ursus americanus)‚ and brown bears (Ursus maritimus). The polar bear and brown bear specifically are closely related
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Polar Bears The polar bear is the largest and most carnivorous bear. It is a marine mammal. The polar bear is found throughout the arctic region including Alaska‚ Canada‚ Russia‚ Greenland‚ and Norway. Polar bears can be as tall as 6-8 feet tall. They can weight can vary from about 200-1‚760 pounds. But‚ when born they are 12 to 14 inches long and weigh around one pound. Polar bear’s lifespan ranges from 20-25 years old. Unlike other bears polar bears do not hibernate during the winter. They are
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While it once might have seemed impossible that the sea ice in the Arctic would ever cease to exist‚ today the trends in melting sea ice are conclusive‚ and the leading cause of polar bears being at risk. In the past thirty years‚ mean world surface temperatures have increased 0.2°C per decade. However‚ in some parts of the Arctic‚ temperatures have increased ten times the rate (Hansen et al‚ 2006). Since the late 1970s there have been major reductions in summer sea ice extent‚ decreases in the extent
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about polar bears. For example‚ is a polar bear’s fur white? Do polar bears hibernate? Where do they have their young? To answer one of your questions‚ polar bears’ fur is actually translucent. Did you know that polar bears don’t hibernate? They do have a den for their young till they are old enough to go outside to hunt for food? These questions and more will all be answered in this informational article about polar bears and their survival in the Arctic. As mentioned before‚ polar bears’
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species and ecosystems; polar bears are essentially the poster child for species impacted by Earth’s warming temperatures. “Earth’s 2015 surface temperatures were the warmest since modern record keeping began in 1880‚” according to independent analyses by NASA and the National Oceanic and Atmospheric Administration. Polar bears depend on sea ice in the Arctic for all aspects of their life; global warming has caused a marked decrease in the polar ice. In May of 2008‚ polar bears were listed as a threatened
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wondered how the polar bear keeps warm in the arctic? That is thanks to fat. The polar bear has nearly 10 cm of fat under their fur. The Polar bear gets its fat by eating seals. With its Astonishing appearance‚ handy hunting technique‚ harsh habitat the polar bear is an impressive animal. Polar bears have a rather astonishing appearance. Most of these traits are not for show but rather Warmth‚ friction‚ or hunting. The size of a polar bear’s head is smaller than most bears. The smaller head
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