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Because years ago, their habitat was not being destroyed by global warming, and there was a great quantity of food for them. But now climate change and global warming have affected the way that they live and aren't coping as well as they once did.
Years ago, the population of polar bears was around 5000-7000, this was the mid 1970's. Today, there are between 20,000-25,000 polar bears. When hunting was banned, the numbers drastically improved, and today, some populations are declining, and some are increasing slightly. As for the bears, they are listed as vulnerable, but conservation measures still must be taken to ensure the polar bear's numbers do not drop to levels seen in the recent past.

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Q: How have polar bears became successful until now?
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Related questions

How much room do polar bears need to hunt?

Since polar bears are not territorial, they will simply range around until they find a suitable food, usually avoiding other bears.


How long until polar bears are completely gone?

2 Hours.


Do polar bears kill the seals and then eat them or do they wait until the seal dies and then eat them?

they eat them with out waiting for them to die because the polar bears kill the seals


Are Bear friendly?

Polar bears are not only extremely unpredictable, but also very aggressive and will attack a human (territory or not.) There was only one recorded incident where a man found a Polar Bear cub and was able to play with the cub, then later as it became an adult, but, smart on his part he sent the Polar Bear back out in the wild where it belonged. Polar bears are extremely fast on their feet (more so than Grizzly bears) and will chase their victim until they drop. They are one of the only animals that will go out of their way to hunt you down and kill you. Not very friendly. Polar bears fight for food and when another polar bear is stealing their food and if other polar bears are bugging them.


Do polar bears live on the shoreline?

Polar bears live on the shore line until ice forms on the sea. Then they travel out to the edge of the ice to hunt for seals. (Except the pregnant females, who spend the winter in hibernation.)


How do polar bears reproduce their species?

Polar bears are mammals, so they bear live young. What is different about polar bears is that the implantation of the fertilized egg is delayed until the time of year is right for cubs to be born. It takes 65 days from that time and cubs are usually born between November and January in the den.


Can a polar bear ever be nice or just aggressive?

Polar bears are not only extremely unpredictable, but also very aggressive and will attack a human (territory or not.) There was only one recorded incident where a man found a Polar Bear cub and was able to play with the cub, then later as it became an adult, but, smart on his part he sent the Polar Bear back out in the wild where it belonged. Polar bears are extremely fast on their feet (more so than Grizzly bears) and will chase their victim until they drop. They are one of the only animals that will go out of their way to hunt you down and kill you. Not very friendly. Polar bears fight for food and when another polar bear is stealing their food and if other polar bears are bugging them.


What is one facts about polar bears?

they have their babies, then put them under snow until they grow up enough to be on their own


How long do polar bears live with their mother?

They stay until they're 2 1/2 years old.


What do polar bears look like when they are born?

They stay with there mams until there big and strong then they eat your face off!


What do polar bears eat in summer and winter?

Polar bears eat next to nothing during the summer time. They may try to catch a few lemmings, some birds and eat some birds eggs, but other than that they're waiting around until winter comes back again. During the winter polar bears feast on seals, walrus and some whale.


In what kind homes do polar bears live?

Polar bears do not usually live in any sort of shelter. However, a pregnant polar bear female digs a den and enters a state similar to hibernation, which she remains in until the cubs are born and developed enough to travel with her while she hunts for food. When it is very windy, polar bears dig a shallow depression to sleep in so that they can shelter themselves from some of the wind.