Self Handicaptop

The polar bear lives up in the Arctic region where global warming and climate change are melting the ice caps that the bears thrive on. They use the ice as a platform from hunting and rest. The random pocket holes in the ice, where the seals pop up at, is where the polar bear catches its prey. With this reduction of ice, “the abundance of seals, and increases the amount of energy and time needed for hunting, leaving less energy for reproduction” (Endangered Species and Habitats).

Grizzly bears in their native habitat are wild animals. The bears (grizzlies, brown, and other varieties) found in Alaska are among the largest on earth. Grizzly-human interaction is best done minimally, if at all: the only reason that bears do not react as quickly as they might to humans (considering them prey) is that in their habitats, they have access to plenty of food and they do not

One of the stand out animals there are the polar bears. Polar bears are known to roam and swim for hours. They spend their days hunting and sleeping after a great meal. They are surrounded by cold snow and ice, and enjoying their day in the snow (?Where do Polar Bears Live,? (n.d)). A polar bear usually feeds on seals. At the San Diego Zoo, the polar bear is woken up at 6:20 when the zookeeper makes its way to feed the polar bears. They are placed in separate rooms to eat, and their meal usually consists of meat, fish, and dog chow. Keep in mind, in the wild, polar bears prefer eating just seals, particularly ringed seals, but they don?t offer that here (?Polar Bear Mornings,? (n.d.)). The reason they don?t feed them seals is because a seal?s body is comprised of fat. Seals are an energy-rich food source, and one seal can provide eight days worth of energy. The fat keeps the polar bears warm in the cold artic (?What Does A,? (n.d.)). Keep in mind in San Diego the average temperature is about 70 Degrees Celsius. The polar bear?s diet is altered. They are also not able to hunt their food, which is what keeps them busy and entertained. The average polar bear enclosure in captivity is 1 million times smaller than the natural range of a polar bear in the wild. At around 9am the bears are moved to the main exhibit. Here people stare at them all

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

Most of the attacks occurred in the summer and fall months when the bears are eating the most in order to gain enough weight for the winter. Within each species, females with cubs were the most abundant in being the culprit for the attack, however, this number is difficult to verify due to the high number of unknown genders in the dataset. Black bear attacks occurred mostly in well-developed areas with high human densities while grizzly bear attacks occurred more in the backcountry where human populations are less

"Polar Bears, Ringed Seals, and the Complex Consequences of Climate Change" is an article written by Mary Bates who earned her PhD studying Bat echolocation. She works for an American Association for the Advancement of Science. In this article Mary talks about how Climate change is impacting different species at different rates. Here, she focuses on sea-ice dependent animals such as Polar Bears and Ringed Seals at Arctic. She explains on how these animals are dependent upon the sea-ice for living. The Arctic is warming at a rate three times greater than the global average, and that the sea ice coverage is declining rapidly. She also talks about Hamilton's study on sea-ice dependent animals. Before the melting of sea ice the Polar bears used

It was in Eurasia, within 500,000 years ago, that brown bears roamed the land. It was a time when Eurasia was found coated in ice and the Arctic ocean became it. A pack of brown bears were forced to separate for the hunt for food. It is believed that glaciers forced isolation upon the packs resulting in the deaths of many bears. Isolation was an important part of the evolution between the two bears as it forced those with an evolutionary advantage, such as the colour and thickness of their coats, to enhance these advantages and managed to survive and breed. Unlike those who were unable to cope with the environment. This generation then made new adaptations to further increase their likelihood of survival in the polar environment (PBS, 2015). For example, the bears required differently shaped teeth. As seen in the picture below, the back teeth of a polar bear are less in number and size. However, it is clear that the front teeth are larger and sharper. This is because of the change in environment forcing a change in diet for the bears; instead of eating berries the bears had to consume seals and needed sharper teeth to tear through skin. In order to camouflage themselves the bears, overtime, grew white fur to blend in with the snow. Another adaption made the these bears is the hunting technique used; at first only seal carcasses that had washed ashore were eaten by them however over time the bears

For the past few weeks, we have been reading the informational text, Where Do Polar Bears Live? Today, you are going to take an assessment where you will have the opportunity to show what you have learned. There are two parts to the assessment. The first part is a 1 short response question, and the second part is 5 multiple choice questions.

Investigating the behavior of animals is essential to understanding the implications for why an animal may do things the way they do. It helps shine some light on a subject that is not heavily researched and give us a better understanding of the feeding behavior, reproductive patterns, seasonal movement and communication between other animals. As boring or bland as animal observation may be it gives us an increased outlook on the many reasons for an animal’s demeanor. I got the opportunity to observe and analyze White-tailed Deer in their natural habitat and get a better understanding for that of their various behaviors. White-tails in general have interesting behavioural characteristics that define them as a species and enable their survival in the wild.

In Bears, a Disneynature documentary film, directors Alastair Fothergill and Keith Scholey filmed two Alaskan brown bear cubs with their Mother, in the coastal mountain regions of Alaska. This documentary chronicles the first year of life of the cubs Amber and Scout with their mother Sky. While facing a constant struggle in providing for and teaching her cubs how to survive in the Alaskan wild, she must also strive to protect her cubs against the changing landscape and climate, other rival male bears, and roaming wolfs. Throughout the film the audience will discover that while the eating habits of bears are crucial to their survival and growth, they still struggle in finding enough to eat to prepare for the oncoming winter. These

In the overview section the author mentions polar bears can weight from 800 to 1,300 pounds and can measure 6 to 9 feet of length. Also, polar bear population is 20,000 to 25,000, and their habitats are Polar Regions. Mentioning these statistics has a purpose behind it, which is to provide the audience general factual information about the animal before the problem is presented. The WWF website has different approaches when it comes to using the logical appeal. Using images as evidence to support statements is one of the most notable approaches of the WWF website. On the overview section there is an image of the Arctic Basin Map shown, used as demonstration of where the 19 subpopulations of the animal are located across the

The frequency of long distance swims in the polar bear population is increasing, beginning in late spring as the sea ice starts melting, when the bears migrate from the sea ice to land or offshore pack ice (Pilfold et. al. 2017). Warmer temperatures are causing ice to become much thinner and more mobile. “Instead of walking on a consolidated sea ice surface, polar bears may be forced to undertake long distance swims to complete their migratory route (Pilfold et. al. :190, 2017).” Since polar bears are not pack animals, the effects of climate change on migratory behavior can vary greatly between individual, and, therefore, this study compares male and female adults and male and female subadults. Subadults of both sexes swam as much as an adult female did, but adult females with cubs were less likely to swim than the other age classes (Pilfold et. al. 2017). The swims are also made in correlation to the ice; there is a positive relation in the distance of the ice from land and the rate in which it retreated with the frequency of swims. Most swims were made before the ice had reached its minimum, and when it expands again, the bears track its movement toward the continental shelf (Pilfold et. al.

Additionally, most of these critters today struggle to live in their habitat partially due to new factors brought on by humans. Fred Van Dyke argues, “Today, as global climate change is reducing available arctic sea ice and contributing to reductions in wild polar bear populations, such as captive individuals in zoos may yet become a valuable resource in conservation for someday helping decimated wild polar bear populations recover from the current reductions they are now experiencing.” Dyke points out in Conservation Biology: Foundations, Concepts, Applications with the example of polar bears that as the destroyers of their homes through acts like global warming and littering, it is the duty of humans to care for animals in need to ensure the species does not disappear and one of the best ways of doing so is through captivity.

The first reason for saving the polar bears given by the Anti-Naturalists is the effect on the food chain. In the artic, the polar bear is one of the few creatures at the very top, it is a keystone species. Polar bear’s diets consist mainly of one specific marine mammal, the seal. Without the polar bear the entire population of the seal would rise significantly. With no predators to lower the population there would be a skyrocket amount of growth and a very small amount of death. This means that the diet of the seal, which mainly consists of small fish and plankton, would also be affected negatively. A large

Investigating the behavior of animals is essential to understanding the implications for why an animal may do things the way they do. It helps shine some light on a subject that is not heavily researched and give us a better understanding of the feeding behavior, reproductive patterns, seasonal movement and communication between other animals. As boring or bland as animal observation may be it gives us an increased outlook on the many reasons for an animal’s demeanor. I got the opportunity to observe and analyze White-tailed Deer in their natural habitat and get a better understanding for that of their various behaviors. White-tails in general have interesting behavioural characteristics that define them as a species and enable their survival in the wild.