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Essay on polar bears and global warming
Polar bears and climate change Essay
Polar bears climate change effects
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SPECIES- Ursus Maritimus, Polar Bear, lord of the Arctic. Lives in an area of five million square miles of snow and ice. From Siberia to Alaska and across Canada, Greenland and the Islands north of Norway, he is the master of all living things except man. It lives in the brutal cold, ice, and snow.
The temperature can plunge down frequently to -40 degrees and sometimes even lower but that does not bother the polar bear because of its color-less skin and layer of insulation fat. Its range extending around the northern polar region. Necessities of Life-The polar bear eats mostly seals which he has to hunt. His trick is to wait by a breathing in the ice and when a seal comes up by that breathing hole, he grabs it so fast it knocks it unconscious and then he eats it. Other pray is a walrus calf or a musk ox stuck in snow, birds, eggs, fish, and dead whales. And sometimes in the summer it eats berries and grass.
The polar bear has no water to drink so it only eats the skin and blubber, avoiding the meat. So by eating the blubber and leaving the meat the male bear is helping keep his body in balance with the surrounding environment. The bear would usually stay in a den or bury it self in the snow to avoid the suns ultra violent rays. Usually the pregnant female polar bear stays in the den.Food Chain-The polar bear finds its way on the top of its food chain. No predator on earth approaches the bear in size. The polar bear towers over everything else in his food chain.
The only thing that could stop him is a human with a gun.Super Amazing Facts-The polar bear is well adapted to its special live style. The hairs of its thick coat are hollow, giving extra insulation against the bitter arctic cold. It also has an extra layer of insulating fat under its skin and the hairs on the polar bear are color less, when the sun hits them they look white. Polar bears are twice as big as lions or tigers, a typical adult male weighs half a ton and is five feet high at the shoulder. His paws are a fool wide.
When he stands up straight, he can look an elephant in the eye.Explain- My species was endangered bad back in 1965 with no more than 5,000 left in the world.
They can be malicious or they can be passive, but Grizzly bears are normally solitary animals. Grizzly bears as big and ferocious as they are aren't very territorial and may be seen together eating where food is abundant, like in a stream where they can catch salmon. When a mother grizzly has her babies she tries to keep them away from other male grizzlies because they can be dangerous to the cubs and try to kill them. When they do venture close though the mother bear might fight back to protect her cubs, ( even considering the big size difference the males and females have). Grizzly bears will do pretty much everything to protect her cub against all of the dangers in this world, fighting back against everything that dares step close to her cubs. Well that’s all for this blog post see you next time on blog posters
To begin with, the melting of polar ice caps has caused polar bears to swim long distances. According to Bryan Walsh of TIME Magazine the melting of the ice caps have caused polar bears especially the young cubs to swim longer distances which has caused a “ forty-five percent mortality rate” (Walsh). In the article Walsh, writes about a study that showed that younger cubs because of low fat and strength were more likely to die due to the long di...
grizzlies will hibernate when there is a seasonal shortage of food, low environmental temperatures, or when there’s snow arrival. Grizzly bears hibernate five to seven months each year. The grizzly will enter into hibernation in October or November. During this time the grizzly bear must prepare a den and consume as much food as possible to last their hibernation period. While searching for a den the grizzly may travel many miles until it finds a suitable area that it likes. The dens are usually at elevations above 1,800 m (5,900 ft) on north-facing slopes. The reason why bears have to eat as much food as possible is because they need the energy from the food to last through the entire winter. They may eat up to 90 lbs of food per day, while trying to put on as much weight as possible. When it’s time for grizzlies to hibernate; will enter their den, and fall into a “deep” sleep. During this time the grizzlies won’t eat or drink; but instead they digest their stored up fat; (the fat used to last them through their entire hibernation.) The bear also will not urinate or defecate, but will reabsorb their urine and feces into proteins. The bear can use 25-40% of their body weight during hibernation; the bear’s heart rate and body temperature may also drop. By March or April, male grizzly bears usually emerge from the den and the females emerge in late April or May. When bears emerge from hibernation they’re
Not many people know about the arctic wolf, it is the snowy white version of a wolf. They have a really big appite when it comes to eating. They most only eat one meal a day and eat up to 20 pounds in that one meal. They are mostly carnivores; they mainly eat big animals like the caribou and the musk ox so they can feed themselves and the whole pack (Arctic/Antarctic: The Arctic Wolf). People eat up to three meals a day, but wolves can go up to days with out eating a single thing (Arctic/Antarctic: The Arctic Wolf). When wolves are hunting they have to be able to have a plan to catch their food. Wolves would get all the pack members that are hunting to surround the animal, and pounces on them. One bit to the neck and the animal would be dead. When they are eating they will eat everything, like the meat, shin, fur and bone (Arctic/Antarctic: The Arctic Wolf). Also Arctic wolves can live up to 20 years in captivity, while they can only live 7- 15 years in the wild (Arctic/Antarctic: The Arctic Wolf). Arctic wolves are one of the most prettiest and unique types of wolf. When Arctic wolves are pups t...
Earlier this year on February 17, 2018, I volunteered at the annual Polar Bear run, which was put on by Franciscan City Way. The Polar Bear run is one of Indy’s oldest races, and this year was the 36th year of racing. I volunteered on a bitterly cold Saturday morning as a Course Marshall, which means I helped guide the runners and walkers to make sure everyone stayed on path. Luckily, I was near a corner where a cop had to block off the street, so she let me sit in her warm car until the racers appeared. I volunteered for this event as a part IUPUI’s Pre-Dental club. My ultimate career goal is to graduate from the IU School of Dentistry here on IUPUI’s campus and maybe even specialize in orthodontics. I fulfill my role as an active member of
animals such as the polar bear, to mate and to prepare for the once again
There are many variant of bears in the bear’s family; starting from polar bear, grizzly bear, honey bear, black bear, panda bear, and many more. Each of them shares many similarities as well as differences. In this essay however, the writer will focused on classified the comparison and contrast between grizzly, and panda bear. From the taxonomy, the threat that both of them are facing, and also some of their behaviour, panda and grizzly share many things in common, but despite many similarities that they both share, there are also several things that distinguish both species such as foods, some of their behaviour
The habitat is also made up of trees with nuts and bushes with berries. Black Bears are omnivores so they eat these along with other small animals. They are opportunist when it comes to food. Mostly bears eat vegetation during the spring but they will eat mainly anything they encounter. During the summer the bears eat salmon out of the rivers if they can catch it. If they can’t catch any they mainly survive off of berries, mainly blueberries, ants, grubs, and other insects. In the fall their diet starts to shift and they start to save up food for winter. They are also known to eat newborn moose calves during the winter when food is scarce.
The next carnivore im gonna tell you about is the polar bear.The polar bear doesnt sleep during winter.Also,like the anglerfish it like to hunt other meat.The polar bear isnt the quickest runner so you can only amagine that it looses most of its food to faster pray.If the polar bear is lucky it gets a free meal every once in awhile becuase whales sre sometimes found on the ice.We think polar bears have been around from 70-100,000 years.They evolved from the brown bear.Their wieght can be from 550-1700 lbs.These bears need to eat around 4.4 lbs a day.Polar bears mostly are use to the cold tempatures but it can get to about -50 F* and polar bears are still HOT so they have to lay on their bellies to cool
Walrus’s adaptations to survive in the cold are their tusks, blubber, and eating two times a day, which keeps them alive. The walrus’s most important survival tools are their tusks. Walruses live in the Arctic Region. Walruses can live on ice floes for a long period of time. When walruses migrate they start at the Chuckcki Sea and end at the Bering Sea. Unlike birds, female walruses do not lay eggs they give live birth. Walrus’s average life span is forty years, unless humans or natural enemies hunt them.
The Siberian tiger is a solitary animal, preferring to travel and hunt alone or with a small pack. This animal lives in mountainous regions and heavily forested areas.
Polar bears (Ursusmaritimus) are classified as marine mammals because they spend most of their lives on the sea ice of the Arctic Ocean. Polar bears are the only marine mammal with powerful, large limbs and feet, allowing them to cover miles on foot and run on land. Besides, they are quite huge in size. All of these make them stand at the top of food chain. Wiig, Ø. Aars, J. & Born, E. W. (2008) mentioned, “Polar bears play an important role in the marine environment.”
They use their powerful sense of smell when hunting for seals, their main source of food. They can smell a seal’s breathing hole, or aglu, up to one mile away. Once located, a polar bear will wait patiently by the hole and attack the seal’s head when it comes up for air. In ideal hunting conditions, the bear will just eat the seal fat, leaving the carcass for other animals. These are some of the ways that the polar bear are able to survive, and this leads me onto our next topic about how the polar bears
When this happens it takes more little animals to feed a polar bear so they are just going around eating all the little animals messing up their population and another food chain. To conclude this is important for the public to know because it shows how humans are affecting the polar bears with global warming, raising awareness for the polar bears, and how the polar bears can mess up a lot of other population because it can't get the calories they
The world population of polar bears is currently dwindling and is currently 20,000-25,000 and is split between 19 sub-populations (Effects of climate change on polar bears, 2010). Brown bears are found in Russia, Scandinavia, Europe, North America and Asia. Americans use the term “grizzly” to refer to the smaller lighter coloured bear in the interior parts of North America, whereas “brown bear”, are generally thought off as the larger, darker variation living close to the coast and feeding on salmon (http://www.nwf.org/Wildlife/Wildlife-Library/Mammals/Grizzly-Bear.aspx, n.d.). Brown bears and polar bears are different species and therefore according to the biological species concept should not be able to produce viable fertile offspring. Polar bears have evolved from brown bears between 100,000 and 200,000 years ago (Reece,J, 2010), and can to some extent be looked upon as a white brown bear (Höflinger,L, 2012).