"Warming Waters, Melting Ice, Force Walrus Away from Alaska's Hunters" by Rachel D’oro explains how global warming is driving away walrus, the Native Alaskan’s main source of food. First due to global warming, walruses are fleeing area’s in search of a better atmosphere with more ice. “Global warming is melting ice off Alaska’s coast. Walrus go where ice is best” (D’oro). Because the ice is melting, and walruses are leaving, this makes Native Alaskan’s rethink what their main source of food should be.…
1. What is the spirit bears real name?support text evidence. the answer is kermode bears.…
The Polar Bear (Ursus maritimus) is a bear native largely within the Arctic Circle encircling the Arctic Ocean, its surrounding seas and land masses. Although it is closely related to the Brown Bear, it has evolved to occupy a narrower ecological forte, with many body characteristics adapted for cold temperatures, for moving across snow, ice, and open water, and for hunting the seals which make up most of its diet. Though there are many theories surrounding evolution, the two stand outstanding hypotheses applying to the modification from Brown Bear to Polar Bear are Lamarck’s theory of Use and Disuse, and Darwin’s theory of Natural Selection. The intention of this paper is to compare these thesis and determine the most appropriate in relation this event.…
Polar bears are extreamly well adapted tohunt their prey under water. Keeping warm is no problem for polar bears infact sometimes polar bears have to lay flat on their stomachs on the ice just to cool of. Polar bears have the thickest fur of any bear species. Their fur has two layers. The first layer, the under coat, is the closest to their body it consists of thick, plush, hair that retains heat. The next layer, the outer layer, is a layer made of "guard hairs" and are not actually hair at all they are hollow tubes. the tubes trap air for insulation andalso reflect a visible wavelengths of light in their hollow air space, which combine to make the fur whiteeven though it is in fact colorless. The white coloring provides camoflauge for the bears allowing them to blend in with there white snowy surroundings. Under their fur polar bears have black skin that absorb the sunlight and under that they have a 4-inch layer of blubber. This blubber keeps polar bears warm in the cold water. Polar bears have fur at he bottom of their feet providing extra warmth and traction to the ice. they are adapted to swim 60 miles without a pause to rest. They have have the ability to reduce their metabolic rate when the food is scarce and again when it's…
Air pollution from PowerPlanet power plants are melting ice caps which destroy arctic animal habitats, which in return is killing the arctic species. Ice caps are sheets of ice that make up polar and sub-polar regions. Now with rising temperatures in the poles the ice caps melt and break off from the main lands. This will keep pushing animals inland, shrinking their habitable zone. WIth the shrinking of arctic animals’ habitat it drives them together which is not good for smaller animals who are prey to dominant species like polar bears. Ice caps can also seclude animals. Instead of you being on the block of ice, suppose it was a cute little arctic fox…
In the article, “Love in the time of climate change: Grizzlies and polar bears now mating” , Adam Popescu makes a claim saying that the climate change in the north is causing animals to interact/come together and mate. He supports this claim by first explaining that scientist has found the mix breeds of different bears. They are calling them prizzlies/grolars, they are simply the mix of grizzlies and polar bears. They’re considered the fusion of the arctic white bear and their cousins, brown bear. He argues that the bears are finding what they call ‘flexible mate choice’ instead of not mating at all they're mating with the best possible partners. They also mate because they seem to find each other sharing relatively close territories and the…
The Department of the Interior protects America’s natural resources while honoring our various heritage, cultures, and tribal communities as well as supplies the energy of the future. The primary focus is within the Fish and Wildlife Service of the Federal Government. The existence of wildlife and plants is constantly threatened as a direct result of humanity. Global Warming is finally receiving acknowledgement necessary to make a difference in the wasteful and destructive routines of human expansion. Artic wildlife is experiencing the most difficulties as the surrounding glaciers are all melting. Our primary focus is on polar bears as they rely on masses of ice to rest after hunting for food. With the emergence of warmer climate, the areas of ice are diminishing leaving polar bears swimming for even longer until they drown from exhaustion. A federal regulation was passed in May of 2008 to protect the polar bear species from extinction by adding them to the endangered list. This should be a wake-up call to every individual living on the planet Earth as it is time to take responsibility for our actions and start making serious changes. Continued decrease of sea ice levels is expected in the future which affects the entire span of polar bears which reclassifies their status as threatened and endangered.…
In this essay I will be talking about The ‘Evolution of Polar Bears from Brown Bears, specifically skin and fur colour, skull and ear shape, and digestion of seal fat’ ill also talk about the two theorists Jean-Baptiste Lamark (1744-1829) and Charles Darwin (1809-1882).…
The most recent change was the molar teeth. With this change the polar bear now has forty-two teeth that are much longer and larger than the regular brown bear which have flat rounded teeth. The interbreeding of grizzle bears and polar bears has created a new type of bear. Polar bears and grizzly bears are breading at an increased frequency due to global warming, which is slowly forcing the polar bears out their natural environment. This cross breading has been increasing as more brown bears have been spotted in polar bear territory and parts of Canada, the traits of this new hybrid bear consist of long dirty white fur, long claws, wider teeth, and a slightly larger head. In addition, this new hybrid demonstrates more similar behavior to polar bears than grizzle…
In the article,”Bear Necessities: Climate Change Sends Grizzlies To Mate With Polar Cousins,”Adam Popescu says that polar bear and grizzly bears are mating. The question is then, asked why is the two different crossbreeds mating?? He claims that the Polar Bears and, Grizzly Bears are mating because they both share closer territories to each other as well as the same DNA. Leading their mixing to be boosted by the climate change that affects the warming of the earth’s atmosphere. But, the according to Researchers they found out that with all this crossbreeding that have been going on this might be the end for polar bears. Although, a professor named Andrew notices that the polar bears need ice in order to survive, they don’t hibernate like grizzlies…
8. b) Global warming has lead to a rising increase in temperature causing the ice sheets in the arctic to rapidly receded. Ice sheets melting is meaning there is a loss of habitats for the arctic animals such as the polar bears and walrus who live on the ice, gradually this will make the polar bears become extinct as…
It has been increasing since the 1980’s, but mainly around the western US. In the future, if heat-trapping gas emissions continue to grow, increases in the lengths of the frost-free and growing season are projected to increase in the US by the end of the century. The largest increases are projected for the western US in places with high elevation and coastal areas (“Climate Change: How Do We Know?”). The way climate change is affecting the wildlife in the different regions of our world is that melting Artic ice removes hunting ground for the polar bears, therefore, lack of food for them. Another way that the climate change is affecting the worlds’ wildlife is that rising ocean temperatures have caused coral bleaching, leading to ecosystems collapsing, which carry huge numbers of fish (“Coral Reefs Bleaching to Death.”). We also have our rainforests to worry about. As a result of climate change, it is causing the rainforest to dry out. Not only is it drying out, there is also deforestation going on which is causing habitat…
Parks Canada provides an estimate of 20,000 Grizzly bears in Canada (regions included: British Columbia, Western Alberta, the Yukon and North Western Territories) (2014). But, a recent study by Sawaya et al. (2012) has suggested that Grizzly Population is already in decline in some parts of Canada such as Banff National Park and the numbers presented by Government of Canada are lower than the reality. Furthermore, The Committee on the Status of Endangered Wildlife in Canada cites them as species of special concern (2012). Amid all this, conflicts with humans can make this situation even worse as they can induce human caused mortality of Grizzly bears. Stakeholders have taken actions and measures to address the issue of Human – Grizzly bear conflict; however, no compelling results have been seen so far. Some actions such as aversive conditioning and hunting ends up hurting the population further; thus, contradicting the inherent nature of both conservation biology and animal welfare science. It is evident that Grizzly bear – Human conflict causes significant harm to the animals, and actions taken to resolve this issue are proving to be ineffective. Therefore, for successful results a paradigm shift must be undertaken to focus on conservation and welfare equally.…
Global warming is becoming a big issue of concern for walruses and seals. Earth’s temperature has risen by 1.5°F over the past century, it is predicted to rise another .5 to 8.6°F over the next hundred years (Climate Change: Basic Information). Small changes in the average temperature can cause large and potentially dangerous shifts in the climate and weather. Oceans and glaciers experienced tremendous changes. As oceans are warming they are becoming more acidic, ice caps are melting, and sea levels are rising. These factors pose threats to walruses and seals. Human activities are releasing large amounts of carbon dioxide and other greenhouse gases into the atmosphere. The majority of gases are coming from the burning of fossil fuels.…
This article explains how climate change has been rapidly melting the Arctic over the course of a few years. As a result, the faster the arctic melts the more damage will be done to the ecosystem, planet, and humans. A few examples of how drastically climate change has shaped the North are that the sea ice covering the Arctic Ocean began to decrease in size when it should have been increasing in size. Also, temperatures at the North Pole rose more than 20 degrees Celsius. These changes are causing polar bears to randomly stroll the shorelines of Hudson Bay in order to wait for the water to freeze. Researchers predicted by the year 2030 the Arctic may lose all of the ice. As a result, no ice in the arctic means ecosystems will be affected badly,…