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More handpicked essays just for you.
Polar bears reason for endangerment of global warming
Polar bears climate change effects
Polar bears climate change effects
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There are many amazing creatures that have been on this earth. One of the most incredible features of this animal is the way the animal survives. The polar bear is an animal that can live in very cold temperatures, due to the features of the polar bears they are able to survive in these harsh environments. The polar bears also help us understand what might be happening in the arctic ecosystem. Polar bears help us gain an understanding of what is happening throughout the Arctic, as a polar bear at risk may signal something is wrong elsewhere in the arctic marine ecosystem. The polar bears are some of the most interesting animals because their habitats, how they have evolved/adapted, and the way polar bears hunt. The first reason why the polar …show more content…
One of the first features that helps the polar survive is that they are the largest land carnivore. Polar bears are the world’s largest land predators, weighing up to 1300 lbs and measuring up to 3 m (10 ft.) tall. On average they live to be about 25 years old. Some of these features help the polar bear survive. Some more are that polar bears are also equipped with strong noses. 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 …show more content…
For example in fall, a seal cuts ten to fifteen breathing holes in the ice, using the sharp claws on its fore flippers. Seals keep their breathing holes open all winter long, even in ice up to two meters thick. They surface about every five to fifteen minutes at one of the holes or use air pockets trapped under the ice when available. Polar bears attack by waiting for seals to breathe at the openings. They locate them with their powerful sense of smell and wait for the seals to emerge. Polar bears have to be smart and patient because the wait can be very long sometimes hours, or even days. The Polar bears are some of the best hunters due to being smart and
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...
Now even though these bears help the environment so will other bears. The Grizzlies are just another species of the many species of bears why are these bears more important than other bears. As we find from the GNWT: “Grizzly Bears in the NWT occur primarily in open alpine or tundra habitats, but they can also be found in forested areas. They have large home ranges relative to most other bear species. On average, a male’s range can exte...
They survive in some of the coldest places on earth, they have a number of anatomical, behavioural and physiological adaptations that allow them to do this successfully. Arctic wolves live for around 7 to 10 years in the wild.
Grizzly bears are enormous bears; that, tend to be misunderstood by others. Many times, they are portrayed wrongly in movies and tv shows. People may go off by things they see; in the movies and immediately suggest that’s the way the grizzly bear is. If others took the time to find information on the grizzly they would see how wrong the movies are about them. For many people grizzly bears can be a mystery such as where they live, what they eat, and whether they hibernate or not. However, with a bit of research answers can be found.
grizzly bears prefered habitat is deserted rivers, wild mountains, and thick and dense forest. Grizzly bears are majestic symbols of the wild. Bears live in and use a variety of habitat types, playing important roles in each one. This makes them an “umbrella species,” meaning that when we protect them and their habitat we also protect many species. Grizzly bears can also help ecosystems by distributing seeds and nutrients through their scat, and occasionally regulating ungulate populations.
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...
The Harp Seal lives in the chilly waters of the North Atlantic and Artic oceans. They spend majority of their time swimming, but do go on land. The Harp Seal eats approximately sixty-seven species of fish and seventy species of invertebrates. These animals are prey of Polar Bears, Killer Whales, and Greenland Sharks (Kovacs, 2015). The Harp Seal’s status is least concerned. They move to Newfoundland, the Greenland Sea, and the White Sea for breeding. As a result of climate change and overfishing, it is predicted that Harp Seal populations will decrease because of loss of pup raising space and loss of food supply. National Geographic. (2016)
Out of an Ice Age emerged one of our most majestic creatures in the world the polar bear. From its brown bear ancestry, the predator evolved to be a master of a harsh and unwelcoming ice kingdom. Intelligent, adaptable and fierce, the polar bear learned how to survive in a place that offers few comforts to any creature. But now that very environment is in flux. And so is the polar bear’s fate (Nature). Polar Bears are very different from other bears. Polar bears are very large bears compared to Black bears. Polar bears weigh anywhere between 330-1700lbs and Black bears weigh anywhere between 150-600lbs. They have strong legs with large, flattened feet with some webbing between their toes that help with walking on ice and swimming. The wide paws prevent sea ice from breaking by distributing weight while walking. Their paws allow them to pull a 600 pound seal out of its breathing hole (Rosing, 20). The webbed feet results in making polar bears, unlike other bear species to be considered as marine mammals along with seals, sea lions, walruses, whales and dolphins (Polar Bear). According to Rosing Polar bears are excellent swimmers and have been known to swim up to six miles an hour and as far as 60 miles at a stretch. The bears paddle with their front feet and steer with their back feet. They often overheat. Sometimes they venture into the waters just to cool off. When a bear climbs on an ice floe, it shakes itself off because it is trying to prevent ice from forming on its fur (22-23). Because of climate change and hunting of polar bears are now becoming an endangered species which is affecting the food chain. We can fix this by going green, banning polar bear hunting and keep creating these new hybrid bears that are mixed with griz...
I think the grey wolf is fascinating because it is so adaptable. It can live in many different kinds of places. Grey Wolves can eat many different kinds of animals. Even though the grey wolf is grey it can also be many other colors. The grey wolf is the most interesting predator I have ever
The winter will last 8 to 10 months followed by the short and much less cold summer. During the summer some lower areas of the Tundra will defrost at which point most of the flora and fauna will start to creep out of hiding. The few summer months are used by many animals such as the polar bear, to mate and to prepare for the once again oncoming winter. During the winter months, most everything remains frozen. Many of the animals migrate south for the winter whereas some stay behind or even group together for ritual group suicide (lemmings).
Polar bears don't just live on ice, they use the ice as an advantage to catch prey such as seals. Polar bears have adapted to living on ice and being able to withstand the cold weather. Now that the climate is changing at a fast pace, polar bears are losing their land because its melting, leaving them with no place to walk, sleep and taking away their way of hunting prey. (polar bears international, 2015) This is all happening so fast that there is no way polar bears will be able to adapt to the new environments, causing extinction. The arctic is warming twice as fast as the rest of the world is due to the build up of greenhouse gases in the atmosphere, making it a problem happening very rapidly. (Bagley, 2015) Temperatures in the Arctic region have risen 7 degrees Fahrenheit over the last half century. (Bagley, 2015) Population among polar bears has decreased up to 40% in some areas. (Bagley, 2015) With the climate getting warmer, ice is melting earlier every spring, and takes longer to freeze every winter which is disrupting the feeding and breeding cycles of many different arctic species. (Bagley, 2015) Polar bears have adapted ways to survive in the cold harsh arctic environment including having the ability to cool down their outer skin to keep their vital organs warm when they are submerged in cold water. Though this may help the delay of hypothermia as they have to swim greater distances from ice shelf to ice shelf, that doesn't mean polar bears can swim forever. (Bagley, 2015) One bear that a scientist studied swam 500 miles over nine days, but lost 22% of her body weight, and lost her cub.(Bagley, 2015) Many different scientists have been studying the behaviour of the polar bear to see if it could adapt in any way to survive. Eight U.S scientists made a hypothesis consisting that polar bears could lower their metabolic rates enough to survive as food
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 Arctic region is home to a variety of valuable animals and plants, including polar bear, seal, and so on. The ecosystem of the Arctic region is fragile because these animals are evolved to live in extreme conditions. With the climate change, many animals are endangered. Ice is the habitat of polar animals because they have to rely on sea ices for resting, food, and reproduction. With the climate change and the decrease of sea ice, the number of polar animals is decreasing and their health is threatened. For example, the average weight of female polar bears in 1980 was about 650 pounds, but the number reduced to about 500 pounds in 2004 (Djoghlaf 15). The earlier breakup and later condensation of sea ice shortens the hunting season of polar bears. Polar bears mainly feed on seals that indwell icy land. The melting ice reduces the number of seals and food intake of polar bears. In addition, polar bears are used to living in ice caves. The rising temperature causes the collapse of ice caves, which can kill baby bears. The climate change is negatively affecting the biodiversity in the region and will definitely harm the ecosystem
Polar bears also prey on young walrus’s. The remains of whale, seal, and walrus are also important sources of food for polar bears. In fact, because of their acute sense of smell, polar bears can sense animal remains from far away.