How does a polar bear keep warm? A polar bear has a layer of fat under its skin which helps it stay warm. It also has a thick layer of fur. Why does a polar bear have very wide, large paws? The wide, large paws help a polar bear to walk in the snow. Why does a polar bear have nostrils which it can close? When a polar bear swims under water it closes it nostrils so no water can get in.
Follow me on Twitter mbarrow. I teach computers at The Granville School and St. Animal Adaptations and Survival by Mandy Barrow. You may not redistribute, sell or place the content of this page on any other website or blog without written permission from the author Mandy Barrow. Arctic Conditions How are animals living in the polar region adapted to the conditions in which they live in? Shortly afterward, Amstrup became the chief scientist of Polar Bears International PBI , a non-profit devoted to conserving polar bears and their Arctic habitat.
In , he received the Indianapolis Prize , the Nobel Prize of conservation that is given every other year to a person who has made extraordinary contributions to animal conservation. We put some of the most common, and sometimes bizarre questions, to him to see if there is hope for this iconic species. Absolutely the most important thing - and really the only thing - that will save polar bears in the long run is to stop the rise of greenhouse gases and stop the warming of the planet. There are many things that we can do on the ground to make a better world for polar bears while we are also addressing the greenhouse gas issue, but my research and subsequent studies have shown that on the ground activities are not by themselves capable of saving the polar bears.
View image of Should we all stand by polar bears? In conservation we have an existing model that when there is a challenge to a species or a habitat, we can build a fence to protect a habitat, or we can hire guides to protect the species from poachers, and then we can go home and sleep thinking that we have saved them.
Could the bears be relocated to Antarctica where there is still a lot of sea ice? Certainly we could relocate the bears and perhaps they would flourish for a while, and the reason they would flourish is because the penguins and the seals that live in the southern hemisphere have not evolved to evade an ice surface predator - polar bears catch their prey by walking around on the surface of the sea ice.
In the southern hemisphere, the ecological equivalent of the polar bear is probably the leopard seal, and the leopard seal preys on penguins and seals from underneath. That is part of the reason that biologists can study many of the Antarctic seals just by walking up to them, and rolling them over and measuring them. They are just not afraid of things on the surface. They are behaviorally plastic enough that if they just see a whole bunch of things to eat on top of the ice they would eat them.
There are lots of things to eat down there that would be easy pickings. Imagine a couple of polar bears rampaging through a penguin colony. How difficult would it be for them to catch penguins? I think probably all of my colleagues would agree that it would be an environmental disaster. There are lots of things that we can theoretically do on the ground to make the world a little bit better for polar bears while we address the bigger issue of climate change.
Of all of those things, managing intentional kills from hunting and unintentional kills when bears get into trouble with people appear to be the most important actions we can take. View image of Do people and polar bears mix? It is important to remember that wild animals, if they have a stable healthy habitat, are a renewable resource and they can be managed sustainably.
Data suggests that in some areas polar bear numbers would be declining without any hunting. So the short answer is that restricting hunting in some areas certainly could save more bears for the time that we stop the decline of the sea ice, but by itself it will not save the polar bears. The cost of it, the greenhouse gas footprint in doing it, would be astronomical.
In the short run, is it something that managers could be forced to consider? View image of Food for polar bears is extremely costly credit: I did a back-of-the-envelope calculation that said if we fed polar bears the same diet they were fed in zoos, the cheapest option, just feeding the bears in western Hudson Bay which is by far the most accessible of all the polar bear populations would cost nearly a million dollars a month.
So could we do that for a couple of years? But could we afford to do it forever? If we want polar bears we have to save their habitat. I think that Mother Nature has done a great experiment that answers this question. If you look across the range of polar bears there are many areas where there are grizzly bears that live onshore, adjacent to the polar bears that live on the sea ice offshore.
Brown or grizzly bears occur all around the world in a variety of habitats. View image of Polar bears may too easily kill prey in Antarctica credit: Those that live in the Arctic live at low densities and are among the smallest of all of the brown bears. If you are a bear, the arctic terrestrial habitat is a very poor place to live. Polar bears, on the other hand are the largest bears in the world. Their large size is supported by their rich diet of seals.
The wide, large paws help a polar bear to walk in the snow. Why does a polar bear have nostrils which it can close? When a polar bear swims .
Antarctica is located at the South Pole; the polar bears you mention are at the North Pole. This is the Arctic Circle of Northern Alaska and Canada. If your question was about .
The great white northern bear that is found throughout the Arctic region is the polar bear. The polar bear travels long distances over vast desolate spaces—mostly drifting on floating ice in the ocean—in its search for seals, its primary food source. Except for one subspecies of brown (grizzly) bear, the polar bear is the largest and most powerful . The polar bear is a burly white bear that lives in the lands surrounding the North Pole. Like all bears, it is a mammal.
10 best resume writing services canada Polar Bears Homework Help e-service essay how to write an essay at masters level. Polar habitats are located in the very north and very south of the globe – the two pole ends of the Earth. The northern polar region is called the Arctic, and in the south the polar region is the continent of Antarctica. Polar habitats have just two seasons – summer and winter (but even summer is normally very cold).