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Yes, polar bears are the largest carnivores on land, but they are good swimmers and often drift with ice floes, where the ice is too thick for them to catch their prey. They are meant to survive where there is sea ice, and they can live without land. It's just that the deterioration of the environment has made their living conditions more difficult, and I hope it can be solved as soon as possible.
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It is estimated that it is not very easy to survive. Although polar bears spend most of their time on land where there is sea ice, polar bears also cannot do without land, because they spend their calf on land and the rest of the time.
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No, polar bears can live in the water, but unlike fish, they can't stay in the water for long periods of time. And it's a mammal, so it has to be on land to survive.
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Of course, polar bears can't be mammals, they can't stay in the sea for a long time, they still need enough land to survive. The reason why I don't like places with thick ice is that it's inconvenient to hunt.
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Of course not, first of all, polar bears are mammals, and mammals need to breathe. If they have been living in the water, polar bears that have lost their physical strength will soon sink into the water and die.
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No, polar bears actually live on land and can swim in the sea, but they can't live in the sea for a long time.
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Yes, polar bears are marine animals, but they actually live on land most of the time.
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I think they can continue to survive, but if he only lives on the ice floes, without Lu Gaoli Bird Land, the quality of life will become very poor, and there is a danger of rotten silver.
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The place where polar bears live is in the Arctic region, where the temperature is very low and the ice is thick. In order to remain permanently frozen, it is necessary to avoid releasing too much heat into the atmosphere. Therefore, if we want the ice not to melt, we need to take the following measures:
1.Reduced light absorption: White or other highly reflective materials can be used on building or equipment surfaces to reduce light absorption and heat accumulation.
2.Enhance shade and cooling: In the habitat of polar bears, vegetation around buildings or equipment can effectively provide shade and cool. Plants can absorb part of the solar radiation and temperature, reducing the accumulation of slippery spring heat from the front of the forest.
3.Refrigeration system: In extreme environments, the refrigeration system can control the temperature well and is able to limit the melting of ice. For example, passive cooling can be used, for example, by burying deep pipes.
4.Increase the density of the ice: The higher the density, the greater the heat capacity, resulting in higher thermal stability of the ice. For example, it is possible to cover the ice with a thick layer of snow, which increases the density of the ice.
In summary, if you want to keep the ice in your polar bear habitat from melting, you need to minimize the accumulation and release of heat. Taking these steps can help us achieve this goal.
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In the early 80s of the 20th century, Dr. Northrom, Chief of Chemistry at Environment Canada's Wildlife Research Centre, revealed a shocking revelation: "Today, polar bears have become contaminated like rats living in the sewers of big cities. Beginning in 1981, the doctor collected polar bear fat captured by Eskimos in various places within the Arctic Circle and conducted precise chemical analyses that even he could not have believed.
In the fat of polar bears, pesticides such as DDT, HCH, chlordane, and typical organochlorine compounds such as PCBs (polychlorinated biphenyls) were detected. Even more surprising is that the polar bears caught only 500 kilometers from the North Pole also found PCBs in their fat at a concentration of 67. It is puzzling that in the Arctic, far away from the hustle and bustle, the concentration of pollutants in polar bears is so high.
According to a report by Japan's Environment Agency, the black-tailed gulls that inhabit Tokyo Bay, Japan's most heavily contaminated PCB, have only PCB concentrations.
Environmental experts have studied the pollution of polar bears and found that polar bears in Hudson Bay, near human settlements, are the most polluted, while polar bears that inhabit near the Arctic Ocean are less polluted. The reason is that the waste chemicals emitted by the northern hemisphere are scattered in the sea with the movement of the atmosphere, and the concentration of marine organisms is greatly increased by the accumulation of marine organisms, and polar bears are polluted after eating these marine organisms.
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Because the body hair of the Northern Calling Hand Polar Bear is very long, and it is covered with a layer of oil. And it is not easy to be soaked by the cold seawater. So polar bears can live in cold environments.
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The main tuberous rock object of adult polar bears** is the blubber-rich seal, which allows them to build a thick thermal insulation layer, so that 50% of their body weight is several fat, and the fat is mainly distributed under the skin of polar bears, and the high content of jujube under this fat layer provides conditions for polar bears to resist the cold.
Taxonomic status : phylum Chordata subphylum Vertebrata Mammalia Carnivora Carnivora Ursidae Ursidae Ursinae Ursus Ursus Polar Bear UMaritimus Physical Characteristics: >>>More
Known as the "King of the Arctic Ocean", polar bears are snoozes, they hibernate like other ectotherms, but polar bears do not sleep with their heads in their arms when they hibernate, but with one eye open and one eye closed, maintaining a high degree of vigilance, as long as there is a slight disturbance, they immediately wake up and are ready to attack at any time. Polar bears are dressed in hardy winter coats, and their coat is like silver and snow. It has a layer of fat five to seven centimeters thick under its skin and can live even in the harsh winter season of -70. >>>More
No, if you have it, it's called an Antarctic bear!
Although polar bears do not eat ice but need to find ice to rest when foraging, if there is no or can not find the right ice, then polar bears have to keep floating in the sea, although no natural predators can pose a threat to life, but the consequences of polar bears just keep floating is exhaustion and death, so picking up garbage cans is one of the best ways for them to stay alive. >>>More
Polar bears probably survive in Antarctica, which is surrounded by the vast Southern Ocean, although they have the potential to destroy native wildlife. Polar bears living in the Arctic feed primarily on seals, especially newborn pups on ice floes or on beaches. There are considerable differences in feeding habits between Arctic seals and Antarctic seals, and a large part of this can be explained by the adaptation of Arctic seals to polar bear hunting. >>>More