Polar Bears I. Introduction a. Polar bears have lived in extremely harsh conditions‚ and with global warming made their way to being endangered. Polar bears have opened eyes on how we see extreme weather and how to survive in it. i. Body of bear‚ what they eat‚ where they find shelter II. Body of polar bear a. How
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these animals or else many of these endangered animals will become extinct. The polar bear is threatened with extinction because of habitat destruction‚ hunting‚ and pollution; however‚ conservation groups and protection laws are working to save them. I’m going to tell you a little bit of background about polar bears‚ where they live‚ and what they eat. I will also inform you of the main causes for why polar bears are endangered. And lastly‚ I will talk about the solutions that the government
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Polar Bears Class: Ursidae. 9bPhysical characteristics: Bears have big heads‚ round ears‚ small eyes that face forward‚ very short tails‚ and stocky legs. They are plantigrade‚ walking on the heels and soles of their feet like humans do. Each paw has five curved claws that are not retractable‚ or cannot be pulled back. Habitat: The polar bear habitats encompass the entire Arctic region. Polar bears have adapted to be able to live in the water and on land. Unlike other bear species‚ the polar
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Polar bears are large‚ white-furred bears which can weigh a maximum of 650 kg. They are the largest bears in the world. Interestingly enough‚ however‚ although their fur is white‚ their skin underneath is actually black. This allows them to absorb the sunlight in order to warm their bodies. This is a very useful feature‚ as they live in the cold climates of the Arctic. Polar bears are also capable of standing upright on their hind legs. Polar bears can live up to thirty years‚ but the average life
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The different adaptations of the Polar Bears and Brown Bears Polar Bears: Polar bears mainly eat seals Paw pads with rough surfaces help stop the Polar Bears from slipping on the ice Polar Bears don’t swim The polar bear’s fat layer‚ which is three to four inches thick‚ not only protects it from the cold A polar bear is so well insulated that it experiences no heat loss. The bear’s blubber layer can measure 4.5 inches thick. Polar bears have excellent underwater vision. They can spot food
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Polar Bear Crisis In May 2008‚ the U.S listed the polar bear as a threatened species under the Endangered Species Act. The Arctic is one of the most discussed on climate change‚ due to the fact that warming is greatest there and because what happens in the Arctic has the can eventually impact the rest of the Earth. So far‚ not only has it affected the way the ice is melting and the weather is changing‚ but it is mainly affecting the animals that are living there (for example‚ polar bears). Although
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a different species. Polar bears have gone under a series of evolutionary changes over time to help them survive in conditions on the planet some such adaptations include larger paws‚ thicker white fur‚ extra fat to keep them warm and more recently they have developed polar bear type teeth. These
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co-evolution. Divergent evolution is when two or more animals originate from a common genetic base. To prove divergent evolution in animals‚ the Ursus Maritimus or polar bear is an example. Divergent evolution is when similar animals branch off becoming dissimilar as time goes. Divergent evolution occurred 125‚000 years ago when brown bears were isolated from their ancestors. This movement got them stranded and trapped by glacial ice and happened because of geographic isolation which is being separated
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The Polar Bear and Adaptations The polar bear is seen by many as the beautiful white bear that lives in the cold and ice of the areas within the North Pole. They may never look beyond the beauty to see the animal has progressed through natural selection to become a creature that endures and thrives in the frigid temperatures and prolific ice. The polar bear has adapted in various ways such as temperature regulation‚ hunting skills‚ movement in water and on ice. The bears white coat makes hunting
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ecologists. Severe declines in polar bear populations are more noticeable as periods of sea ice cover are steadily declining. A decrease in sea ice is leading to nutritional stress in polar bears due to shorter periods available in prime hunting grounds. As a necessity to the polar bear’s niche a loss of sea ice has harmful implications to polar bear populations. Not only are hunting grounds being lost but industrialization and human habitation are decreasing the size of the polar bear’s natural habitat
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