Explain How To Maintain The Average Temperature Of A Polar Bear

The polar bear possesses a low, flat skull with high-sitting eyes which is best suited to a semi-aquatic life. This also benefits the Polar bear by enabling them to put their heads into puppy dens or breathing holes.

The melting sea ice is also affecting the polar bear's main prey, seals, forcing the bears to turn to alternate, less nutritious food sources. Once sea ice forms in the winter, seals use the ice to create dens to give birth to their pups. In these months, polar bears use sea ice as their hunting grounds to find seal dens. Now that Seasonal Ice is forming later and melting earlier (IPCC, 2013), seals have less time to build dens and give birth. Consequently, polar bears have less time to hunt their preferred prey of seal pups. They must spend more time on land hunting other animals of less nutritional value. Organizations like Sea World Parks have reported male polar bears occasionally eating newly-born polar bear cubs because they cannot find other food to eat. Lack of nutritional food leads to a reduced body size. Polar bears are becoming thinner and weaker from not eating enough (Rode, Amstrup, & Regehr 2010). They have to swim longer distances to find ice to hunt upon, causing many cubs to die because they are not yet strong enough. In the Hudson Bay, the average polar bear weight has decreased by 15% and the population has decreased by 20% (National Wildlife Federation). In the summer when there is no ice, polar bears in the Hudson Bay go onto land to fast until the ice reforms. Now that ice is

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

White bears require a variety of physical characteristics to survive in the harsh environment of the Arctic. Large, wide paws with bumps allow them to distribute weight and grip more efficiently. Water resistant fur with a luminescent quality keep the bear warm and dry. Additionally, Sharp and powerful teeth have the ability to penetrate hard flesh. These special features allow not only the ability to thrive in a difficult environment, but also are important for communicating with other species and another bear.

The Polar Bear are found on the icy coasts that surrounds the North Poles and as far south as Hudson Bay. Around 60%of Polar Bears can be found in Canada with the remainings throughout Greenland, Alaska, Svalbard, and Russia where tend to be close to the ocean across the icy fields. The habitats are affected by human encroachment by hunting , and releasing chemical pollutants into the water.The Polar Bear eats Seals, Walrus, and Seabirds. Polar Bears can live up to 20-30 year. Polar Bears have a lot of fur and their fur is clear, white, or yellow. The Polar Bear is 6.5 ft-8.3ft. they can weigh up to 330lbs -1,322lbs and they can swim up to 25mph.

The polar bear, the largest land carnivore in North America, one of the largest animals in the world and a favorite at zoos worldwide, has, over the years, adapted to its harsh Arctic environment. The appropriately named ‘ursus maritimum’ or sea bear usually lives between 15 and 18 years in the wild and spends most of its life on ice. It is the most recent of the eight bear species. The first polar bear was a brown bear subspecies, with brown bear dimensions and brown bear teeth. The polar bear evolution was rapid due to the small population and extreme pressure to survive. Even today, the polar bear continues to evolve to better adapt to the harsh realities of Arctic life.

The water bears live all over the world from the deepest sea to the Himalayas. Most of the water bears live in fresh water, often in wet or moist habitats that are subject to frequent periods of drying and then rewetting such as the moss on a roof or algae in the gutters. Other areas include hot springs, glaciers, lichens, leaf-litters. Their ability to form a “tun” allows them to be blown around the world by the wind. The water bears enter a cryptobiotic phase in environments with intermittent moisture that allows them to survive conditions such as drought, low oxygen, salinity changes, or extreme temperatures.

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).

In conclusion, it took many years for polar bears to adapt perfectly to their new arctic environment. However, they’re facing a new challenge and threat due to the melting of the arctic ice because of global warming. In response, the polar bears will eventually evolved to have thinner fur or the polar bears will be forced to adapt to the increasing temperatures of their habitat and may severely decrease the population. In the future, the cross breeding of polar bear and grizzle bears will help these species survive their changing environment.

 The polar bear has to be able to stay warm in the harsh winter cold. In fact sometimes because they have such thick fur they have to lay down on the snow to cool off so the harsh cold isnt even enough to keep them up to tempreture.

Firstly, I know that bears hibernate because in the winter their core body temperature goes down significantly, then when they're not hibernating.According to Stephanie, a bear expert, while the bears are regularly sleeping their temperature drops.I know this because in the graph it shows us the body temperatures of three bears, in these three bears the first one stood out because it had the

Polar bears are affected by global warming in a bad way because they need sea ice to stay alive. Sea ice helps polar bears catch food by finding openings in the ice to find fish or seals.Polar bears can't live in hot climates. Polar bears are endangered because of global warming and if it does not stop they will go extinct. The ice is also the polar bears habitat, they need this ice to sleep on too. Humans can stop global warming by planting trees and plants, buying solar panels, donating money to stop global warming, and more. Do you want this beautiful animal to be

Polar bear eat fish, seals, whales, and bird eggs if they cannot find something different. How they get their prey is by waiting at breathing a hole and wait on a seal to come up. Sometime they cannot find something to eat, and they can stay alive on their body fat. But they have to find food soon or they can die. They can smell their prey on ice about 20 miles away (Beening).Their habit is very cool and icy.

Seals provide food for many Arctic wildlife species giving polar bears a significant role in their ecosystem which is a biological community of interacting organisms and their physical environment. The respiratory system of a polar bear is quite similar to any other mammals, this system includes blood,heart,veins and lungs.Polar bears have a composite internal lungs for gas exchange in their bodies as they decrease water loss, and are closely attached with a closed double transport system as they transfer oxygen from the lungs and remove carbon dioxide (CO2) from the cells. In polar bears, air is entered through the nostrils which is moist so the dampness of the air will be enough to stop the system from becoming too dry. As air enters through the lungs, the trachea divides into two bronchi, than the bronchi divides into bronchioles, as they are exchanged in air sacs which are alveoli which provides a very large moist surface area as gas exchange takes place. The alveoli are surrounded by capillaries so gases can diffuse into the blood. Polar bears have a circulatory System which are similar to other mammals which include veins, heart and

Polar bears mostly live in the costal ice or north pole Because of thick clear fur that protects it body from the extreme temperatures of the snow and the ice cold water. The polar bear is a carnivore that eats’ seals, walrus, seabird but humans and global warming are killing them. The polar bear run across the ice or put it head in a hold to get food for it babies or for itself to eat. When they make babies they put them in hole and when they grow up they can live up to 20-30 years in their life. But most of them are gone because of environmental problems and global warming because of us humans doing bad things to the world. So the area threaten animal which causes them to might go extinct which is bad for the animal.