Arctic shrinkage

There are two different types of tundra, they are the arctic tundra and the alpine tundra. The alpine tundra is located high in the mountains above the trees and the arctic tundra is in the article circle. In the tundra biome, there are many oil rigs and oil mines and they disrupt nature. The tundra biome is the coldest biome and covers about 20% of the earth. It is also the driest place on earth and only gets an average of ten inches of rain per year. In the summer time, it does not get dark,…

The Arctic Pochee is a close relative of a cheetah and a polar bear. The Arctic Pochee has many of the cheetahs traits and many of the polar bears traits. The Arctic Pochee lives in a rocky environment with harsh cold weather, lots of precipitation, wind, and small mountains. There is very little vegetation there but there some grasses, trees, and shrubs. The Arctic Pochee eats water animals like fish and sea urchins. There are many lakes and there is an ocean nearby, this is wear the Arctic…

• Polar bears and brown bears can produce a hybrid offspring • Polar bears evolved from brown bears • The timing of when polar bears first appeared is vital because it determines when they have experienced warm periods with little sea ice historically • Mitochondrial DNA (mtDNA) – relationships based on differences in a group of genes • The polar bear genome discovered alterations in genes related to the development of the heart, cardiovascular function and lipid metabolism – this is why…

The Polar Regions are too cold to support a variety of life. However, scientists have discovered life forms that thrive in this cold environment, and they term the polar oceans as important in maintaining a balance on earth. The amount of water frozen in these regions can be destructive if melted nod released to the warm waters. The McMurdo station is a destination for many scientists to conduct their studies on the waters and the life forms that survive in the cold environment (Nold, 2002).…

Common and Scientific Name Polar bears are commonly known as polar bears here in English but in French they are known as Ours blanc or Ours polaire and in Spanish polar bears are known as Oso polar. Polar bears can also be called sea bear, ice bear or even white bear. Habitat Description and Niche Characteristics Diet: Polar bears are carnivores and their primary prey are seals. Some seals that polar bears eat are ringed seals, bearded seals and other pinnipeds. Polar bears can be…

nationalgeographic.com nationalgeographic.com We already brought you part one of our list of 40 things you didn't know about Canada, and now we're back with part two! Check out 10 more fascinating facts about our Northern neighbor that you definitely (probably) didn't know below, and stay tuned for parts three and four, coming soon! Number Thirty: It Has Overpasses Built Exclusively for Animals. It's true! There are highways in Canada's Banff National Park that include overpasses built for…

Cross breeding plays an important part in the future of endangered animals. In the case of polar bears it may lead more quickly to the extinction of them. Within the past 10 years scientist have found several bears sharing DNA, in this case the two bears sharing the DNA are the polar bears and the grizzly bear. The earth has been heating up which means that the polar bears are getting pushed out of there land space, and are even starting to die off. The polar bears have to expand into the…

They have white-yellow fur that help them camouflage into the snow and ice in order to help them catch their prey. Polar bears live in the Arctic region. They live on the ice, the coast and islands of the Arctic region. I think climate change and overhunting are most likely to influence the future of the polar bears. I believe climate change is a factor because it causes the loss of ice habitat for the polar bears. This is…

Another vertebrate that lives in the tundra is the polar bear. Polar bears can be found in northern areas of Canada, Alaska, Russia, and Norway. They are also located in various parts of Greenland. Polar bears are among the largest land mammals on earth. Males can weigh between 700-1400 pounds and stand between 8-10 feet tall. Females only weigh about 350-700 pounds. Polar bears appear to have a white coat, however, their hairs are really translucent and clear. The skin of the polar bear is…

Exceptional monitoring efforts have established a shift from Arctic to Subarctic climate regime within the last decade (Grebmeier et al. 2006). Building on the existing 30-year record of direct observations on the water column and benthic macrofauna, I will extend this record back to the last glacial maximum using…