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Churchill Manitoba - Polar Bear Capitol Of The Earth

Churchill Manitoba, located on the west shore of Hudson Bay in northern Manitoba, Canada, easily lives up to its moniker of Polar Bear Capitol of the World. This little village of only about 800 year-round residents lies right in the middle of one of the densest populations of polar bears anywhere.

What Makes Churchill Manitoba Polar Bears Special

Only about 50 miles south of the city, near the Broad and Owl Rivers, is one of the largest denning areas for the bears in Canada. Large, deep snowdrifts pile up on the steep sides of the river banks, making for fantastic snow dens for pregnant bear mothers-to-be.

And, this area is one of the first to freeze up in the autumn along the west side of the bay. The Churchill River, one of Canada's longest empties into Hudson Bay at the townsite, and the typically north-south coastline takes an abrupt east-west turn, forming Cape Churchill. The enormous quantity of brackish water in the river delta forms ice at a hotter temperature than pure sea water, and the prevailing northwesterly winds then push the ice along the east-west shore of Cape Churchill.

Since the bears have been fundamentally fasting all summer, they're keen to head out on the sea ice for the winter seal hunt, and the Churchill area's early freeze-up attracts the bears like a magnet. While the bears have been on shore in the region all summer, by late September they start to assemble along the shore of Hudson Bay, usually east of the village of Churchill. Much of this area is a section of a provincial wildlife management area and simply to the south is one of Canada's most recent state parks, Wapusk Countrywide Park.

Best Viewing Seasons for Churchill Polar Bears

In mid-October, the pools begin to skim over with thin ice and the initial snow falls on a regular basis. This is the beginning of an exceedingly brief, but intensive visitor season. Huge tundra buggies with huge tires and seating up to 50 travelers prowl the tundra looking for bears and other Arctic animals. This is the chosen means of observing bears, as it not only provides tourists with warm protection from the cold winter conditions, but safety also. Polar bears can stand more than ten feet tall on their back legs and these machines put travelers just beyond harm's way of inquisitive bears.

The autumn season is only a little over a month long, from mid-October to about the third week of November, when Hudson Bay generally begins to freeze in the Churchill area.

However , since the bears are nearby in the area after they come off the sea ice in June, they can be encountered in the summertime also. In fact , this is often an excellent time to see them on the blooming tundra and other animals and birdlife too.

Randy Green is a founder of the Churchill polar bear trips that have become enormously sought-after among wildlife fans in recent years. His internet site covers every aspect of organizing a polar bear trip to Churchill.

How does natural selection work ?

As a simple example, we can take the polar bear. All of us agree that the camouflage is part of nature. But what makes nature choose white color for the polar bear ? Rather, how does nature create various species whose surface texture matches with that of the surrounding ?
Correct me if I am wrong, as per the answers I understand that nature by permutations and combinations creates various types of species, but only those with favourable charecteristics continue to live on.

So, why don't we observer such combinational species now ? We see quite stable species i.e, a dog gives birth to a dog that is completely like a dog ?

Is our time frame too small to observe genetic changes ?

changes in DNA by mating, mutations, etc can make various phenotypes (visible traits)...for example: red hair, or white fur on a polar bear. The trait that helps an animal survive in the wild, will most likely be passed on. They will have a better chance of mating and reproducing. The traits that do not help an animal survive may not be passed on. For example, if the ancestor to the polar bears was indeed a different color and they had some mutation in their DNA causing them to have one white cub and one purple cub, the purple cub would be easier to see in the snow than the white cub. So the purple cub would be easy prey and would be eaten. Whereas the white cub would be harder to see. So the white cub would grow old enough to mate and reproduce. It passes its genes onto its own cubs, making it more likely that the cubs would be white and help them survive in the snow. All the purple bears would die off. Hope that helps.

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