Grolar Bear Research Paper

There’s times when grizzly bears do come together and it’s when the salmon are swimming Upstream for summer spawning. You can find them in fishing spots in Alaska where there would be more than one grizzly bear there trying to get something to eat. Grizzlies are very powerful standing at the top of their food chain. They weight about 800 pounds and their size is about 5 to 8 feet. Being this big you’ll think that they are carnivores but they are actually omnivores.

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 American black bear is considered a threatened species in some areas. In fact they are protected in the states of Louisiana, Texas, and Mississippi. In other areas they are actively hunted and are subject to open "hunting seasons".

Wild bears are grand images of nature. Bears live in and utilize an assortment of territory sorts, assuming vital parts in every one. This makes them an "umbrella species," implying that when we secure them and their environment we likewise ensure numerous species. Wild bears can likewise help biological systems by dispersing seeds and supplements through their scat, and every so often controlling ungulate populaces.

The polar bear is a burly white bear that lives in the lands surrounding the north pole. The polar bears is threatened species because their population is decreasing due to sea ice melting

The average temperature of a polar bear is 37°C, they are able to maintain this temperature by the thick  layer of fur they have, they also have a tough hide and a insulating fat layer. This insulation is able to keep the polar bear warm in temperatures that drop to -37°C. However as polar bears have a very thick layer of fat they can overheat and can die because of this, so the way they are able to keep cool is they do not travel for too long at a slow pace. Doing this stops the polar bear from overheating. If there is excess heat it will be released through the nose, ears, muzzle, footpads, thighs and shoulders as these areas do not have any fur covering it and these areas they have blood vessels which are located close to the skin. Another thing they can do to cool down

Between the years of 1800 and 1975 bears population decreased from 100,00 to 1,000. Since bears started to become endangered, they became protected by what is called Endangered Species Act in 1975. Now bears can’t be hunted. Even though they are protected, some bears like pandas and polar bears, are going endangered just because of their habitats.

The polar bears use ice caps to hunt the seals ,without them its hard to hunt which leaves the bears under weight. The polar bears become sexually reproductive around the age of 4 (girls). They are pregnant around 195- 265 days. They have about 2 cubs per litter. They can get pregnant a couple years after already having a baby.

The body of a bear is made up of their large head, long nose, and thick fur. Bears can’t see as good as other mammals their size, because there eyes are rather small. Their ears are sticking up out of their head which helps them hear well. Their sense of smell is better than their hearing. They use their sense of smell to catch food. Bears climb and swim to get their food. They are good at swimming and climbing, because of their tough shoulders. They have four feet and five toes. At the end of those toes are long sharp claws. They use their claws to dig for food or to attack prey.

The polar bear (Ursus maritimus) is the biggest terrestrial mammal in the Arctic. He is also considered as an animal with a circumpolar or broad distribution in polar regions. The conservation status of bear remains problematic, according to the global warming that is happening now. If further managements are not implanted, polar bear population`s will disappear in the future. The polar bears live in the Arctic, an ocean surrounded by land. The Arctic has a very low species diversity and polar bears the first animal into the food chain. Also, the Arctic has cold winters which are not suitable for some aquatic species. With global warming and interglacial period, the ice and snow began to recede about 20.000 years ago. The rate of ice loss has

As polar bears inhabit the Arctic regions of five separate nations, it is important to examine the different nation specific management plans in place for conservation of the species. By examining the various management plans in place, a comprehensive look into polar bear management of the species on a global level may be achieved. Of the five nations with polar bear populations, the three largest have some form of a national management plan in place. However, in all five nations, all have specific polar bear hunting regulations and restrictions that also assist in polar bear preservation.

Polar bears are one of so many animals that are going extinct . The polar bear is a bear who is a carnivorous whose native range lives in the Arctic Circle encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. The polar bear is going extinct for many reasons but the main reasons is that there is ongoing and potential loss of their sea ice habitat because of climate change.According to WWF “Polar bears were listed as a threatened species in the US under the Endangered Species act in May 2008. The survival and the protection of the polar bear habitat are urgent issues.”

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).

This is because the females do not have enough food. If they do not have the right amount of protein and energy, they really cannot reproduce. Also, the bear cubs cannot survive in a warmer climate. Their small bodies are not able to handle the warmth when they should be living in the cold. There is not enough breeding going on to keep this species safe and not endangered. The ideal living to keep them reproducing is cold climate, enough food, and endless amounts of ice. Right now, polar bears are losing everything that they need to

(2013) found that polar bears have been documented chasing and preying on wild geese, also on eggs of goose, other mammals, and even berries all of these in land. Animals have to adapt to the environment change, polar bears have found a way to find food, but the big questions is, is it enough for polar bears to eat terrestrial food? Polar bears feed on ringed seals because they provide the necessary fat and nutrients that the polar bear needs in other to live. As described by Rode et al. (2015), the consumption of terrestrial food by polar bears has not been sufficient to replace their usual diet. This situation can have a big impact on polar bears, and other species in the environment. Polar bears need ringed seals to survive, but without the seals they have to look for other types of animals. Sritling and Derocher (2012) stated that because of this phenomenon the body mass of polar bears have had a decrease, and also a bigger mortality in polar bears. These can have serious effects on this species because there can be a point in time where polar bears would become extinct. Also encounters of humans with polar bears have become more common because of the necessity of these animals to look for