Polar Bears Life Span It is believed that polar bears live an average of 15 to 18 years, though some bears have tagged in their early 30s. In some zoo’s bears have been known to live up to the mid 30s. There is only one individual bear that has been known to have lived up to the age of 40. Biologists believe that starvation is the leading cause of death for sub adult bears, which is probably the reason that when bears are in captivity (a zoo) they live longer. Population Polar bears live in Russia
social effects on aspects such as health, food production, and growth. Climate change causes tremendous spread of certain infectious diseases and increased death rates related to heat waves. Climate change would affect the health conditions of polar bears through malnutrition, high death rates, and frequent occurrence of diseases and injuries due to extreme changes in weather. In addition, high concentration of ozone gases at ground level causes cardio-respiratory diseases in urban areas (Richard
breaker for the future of the polar bear. Are humans responsible for the future of the big white bears that roam around on ice all day trying to survive? Maybe we are, maybe we are not, but polar bears are diminishing due to fluctuating environmental changes, gas and oil activities like drilling in the Atlantic Ocean, and their survival rate is decreasing as a result of starvation. Climate change has been one of the top leading causes of sea ice loss. According to Polar Bear International a study found
SPECIES- Ursus Maritimus, Polar Bear, lord of the Arctic. Lives in an area of five million square miles of snow and ice. From Siberia to Alaska and across Canada, Greenland and the Islands north of Norway, he is the master of all living things except man. It lives in the brutal cold, ice, and snow. The temperature can plunge down frequently to -40 degrees and sometimes even lower but that does not bother the polar bear because of its color-less skin and layer of insulation fat. Its range extending
survival with the top predator of the artic, the polar bear. Polar bears inhabit the circumpolar arctic regions. They live near their primary food source in the ice packs of the artic. The bears inhabit the circumpolar North, which would consist of Canada, Alaska, Greenland, and other regions in the artic. The temperatures range between -40°F to -50°F in the winters and summer temperatures stay around -29°F. When summer reaches the artic the polar bears are forced to travel to the remaining ice. They
creatures in the world the polar bear. From its brown bear ancestry, the predator evolved to be a master of a harsh and unwelcoming ice kingdom. Intelligent, adaptable and fierce, the polar bear learned how to survive in a place that offers few comforts to any creature. But now that very environment is in flux. And so is the polar bear’s fate (Nature). Polar Bears are very different from other bears. Polar bears are very large bears compared to Black bears. Polar bears weigh anywhere between 330-1700lbs
The Polar Bear is a huge and powerful animal, they are also the top predators in the Arctic and the world's largest land living carnivore. But sadly there is not so many of Polar Bears that live in the Arctic for it is found to be an endangered spies. Polar Bears are endangered/ threatened due to the burning fossil fuels such as coal and oil releasing high amounts of carbon dioxide into the atmosphere. Carbon dioxide is a greenhouse gas that traps the sun's energy and causes the Earth’s climate to
Polar bears are big, white bears (sometimes darker fur) that live in very cold regions like around the artic poles. There are 21,000 to 28,000 Polar bears alive that are known. Polar bears swim in water and are carnivores, they eat fish . Polar bears feed mainly on ringed seals and bearded seals. Depending upon their location, they also eat harp and hooded seals and eat carcasses of beluga whales, walruses, narwhals, and Bowhead whales. A polar bears' stomach can hold up to 15% to 20% of its
Habitat Polar bears prefer to live in extremely cold artic climates. They live only in the Northern Hemisphere, on the arctic ice cap, and they spend most of their time on coastal areas. Polar bears are widely spread in Canada, extending from the northern arctic islands south to the Hudson Bay area. They are also found in Greenland, on islands off the shore of Norway, on the northern coast of the former Soviet Union, and on the northern and northwestern coasts of Alaska in the United States. Physical
northern-most tip of Alaska, has increased 4.5 degrees Fahrenheit in the last 50 years” (Noblin, n.d.). Polar bears have been threatened in the past by unregulated commercial and sports hunting in the 1960’s and 1970’s. They were being wiped out quickly with modern methods of hunting, including aircraft, and were facing a huge loss in their population. Fortunately the 1973 Agreement on the Conservation of Polar Bears was established which was signed by Canada, Norway, Denmark (for Greenland), the United States
characteristics of a polar bear is its color. The fur shafts themselves are not white. The shafts actually lack pigmentation and are transparent which allows them to scatter and reflect light resulting in ideal camouflage in a world of ice and snow. * Polar bears paws are also well adapted for the environment in which they live. They can measure up to 304 mm. (12 inches) in width. These large paws allow polar bears to better distribute their weight more evenly across ice surfaces. * Polar bears do not hibernate
One of the main differences between the Polar Bear and other types of bears is where it lives. When the Polar Bear was first discovered, it was very unusual that it would live in this extremely cold part of the world. There is information to suggest that millions of years ago the evolution process began. Evolution is a process of changes that take place as something exists over time. Researchers believe that a large number of brown bears became isolated from the rest of the population during a time
An observant over the past years show the sudden increase of polar bears being endangered. The polar bear is a meat-eating bear, which normally lives within the Arctic Circle, surrounding sea. Polar bears are threatened directly on how humans treat our earth and our environment involving Global warming and greenhouse gas emissions. A friendly environment helps saving the lives of Polar bears that are being harmed due to our actions. This problem may be solved through various ways by helping to
a thick layer of ice that never thaws away- this biome is very cold, with temperatures as low as negative 70oC. One specific population that has adapted to this harsh environment is the polar bears. The Arctic tundra’s extreme temperatures have caused species, specifically polar bears, to adapt to it. Polar bears feed on animals that live underwater; therefore, they are extremely strong swimmers. Their front paws propel them through the water, and their hind legs are used as rudders. Additionally
Essay Title: Polar bears are endangered Polar bears are one of the countless species who are endangered. They were one of the first animals affected by global warming and their population is heavily decreasing. Around 1980, the Arctic was as large as 8 million square kilometres. In 2011, studies show that the Arctic has reduced its size to 4.5 million square kilometers. In the future, will there be anything such as the Arctic? Scientist predict by 2040, only a fringe of ice will remain in Northeast
foods were enough to fill the needs of wild polar bears to live. The problem they had to find an answer to was if the polar bears were able to adapt to the land based food and be able to balance their calories to not starve. Their hypothesis was that the polar bears would be able to adapt to the different type of food when they were fasting. This hypothesis was proven false because the polar bears that were fed food were losing weight as fast as the polar bears that weren't fed. The independent variable
National Oceanic and Atmospheric Administration, which has played a major role in the conservation of the polar bear species, one of the mammals most adversely affected by the recent climate changes. As more research has been conducted regarding the polar bears, scientific name Ursus Maritimus, the conclusions have been shocking. In 2008, the Department to the Interior listed the polar bear species as “threatened” under the Endangered Species Act of 1973 awarding it some protections mandated by
to Climate Change on Polar Bears (Ursus maritimus) The EPA describes climate change as any significant change in the measures of climate lasting for an extended period of time (Climate Change: Basic Information). The concept of climate change is one too familiar to one of the top artic predators, the polar bear (Ursus maririmus). Many people are aware that due to climate change, polar bears are experiencing extreme habitat loss in the form of melting ice sheets in the polar region. The Arctic is
Polar bears are one of the Earth’s largest and most powerful carnivores. These bears are dependent on sea ice as their primary habitat and are thus found on the Arctic coasts of North America. The scientific term used to describe polar bears, Ursus maritimus translates to sea bear because polar bears spend most of their lives on the Arctic ice. A common misconception the public holds is that polar bears are white; their fur is actually consists of two transparent layers: hollow guard hairs and an
Introduction: In this report I will be using the Polar Bear (Ursus maritimus) as my chosen species. The Polar bear is the largest land living apex carnivore in the world where males can reach a mass of over 450 Kg and females between 150 Kg to 350 Kg. Instantly recognizable by their white fur coat which is technically transparent where it is the reflection of the snow that gives the Polar bear its beautiful white coat. As a Polar bear’s skin is black allowing for some heat from sunlight to aid in