Polar bear population has not been extensively studied. The local tribesmen are our most accurate information and the current claim is that the populations are growing as a whole.
Few groups claim that the polar bear population is decreasing now. What the claim is that if global warming is true and the environment is warming, polar bears may be endangered.
There are many sites but here are a few:
http://www.animalinfo.org/species/carnivor/ursumari.htm
http://www.aei.org/outlook/27918
http://www.nwf.org/nationalwildlife/article.cfm?articleId=880&issueId=72
http://www.hsus.org/marine_mammals/a_closer_look_at_marine_mammals/polar_bears/
(Notice could drop in population as opposed to are dropping)
http://www.heartland.org/policybot/results/20631/ESA_Listing_Not_Needed_for_Polar_Bears.HTML
No, why would someone even ask this question if they know, Polar Bears would just eat the dogs since Polar bears are carnivores
No, they have not had polar bears since 1980.
I am pretty sure bears since they have more body they can last the longest. :)
Since polar bears are not territorial, they will simply range around until they find a suitable food, usually avoiding other bears.
It is impossible to answer. Constant hunting of polar bears reduced their numbers to around 7000, but a world-wide hunting ban allowed their numbers to increase. Scientists think there are probably between 20,000 and 25,000 polar bears in the Arctic. There is evidence that some populations are declining because of threats to their habitat, the sea ice, from global warming.There are nineteen polar bear populations. Of these nineteen, two are increasing in numbers, six are stable, and five are decreasing. The other five populations have insufficient data to be evaluated. The polar bear population has varied since 1972 from 20,000 to 30,000.In 44 years, the population has remained static or increased slightly in spite of threats like global warming.See link below for population table through the years.http://www.animalinfo.org/species/carnivor/ursumari.htm
Probably not since they are an endangered species.
No. Since they are mammals, their mothers give birth to them.
Polar bears are solitary creatures; normally the only group of polar bears is a mom and some cubs, a family group. However, when several polar bears do end up together, the collective nouns are an aurora of polar bears or a pack of polar bears. Although pack is one of the collective nouns given, I believe that it's a misnomer since a pack infers a group working together like a pack of dogs, wolves, or coyotes. But even when polar bears are together, they don't work together.
It doesn't really rain in the Arctic. Even so, a polar bear will remain out on the tundra or the rocky shore when it rains, since polar bears aren't afraid of getting wet.
Actually, the polar bear is a tertiary consumer.
They probably do but it's really hard to say, since there are not enough bears around and they're a bit difficult to keep track of for biologists and geneticists to know if there are recessive traits in polar bears or not.
The polar bear is stronger because it weighs much more than the liger. Polar bears weigh much more than ligers since polar bears weigh 950 pounds to 1760 pounds. Ligers weigh about 800 pounds. Brown bears, like kodiak bears and alaskan brown bears, are also stronger than ligers.