Polar+bear+1

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The polar bear also called as sea bear is an endangered species. It's evolved about 200 000  years ago from brown bear. It's the largest carnivore in the world. An adult male weights about 350-680 kg and a female weights 175-340 kg. Females usually bear two cubs and they stay with their moms around for 1 year.

 Polar bears habitat is the Artical circle. They live also in the northern parts of Russia, Western and N     orthern Alaska , Canadian Arctic , Greenland, Svalbard and in northern Siberia. During the last Ice Age and also after it, polar bears' habitat was larger than nowadays. Researchers believe that polar bears have lived also in Finland. Although most polar bears are born on land, they spend most of their time at sea. Polar bears differs from black bear w ith many body characteristics adapted for cold temperatures, for moving across snow, ice, and open water, and for hunting the seals. And also polar bear's fur is white.
 * Habitat **



**Endangered **  Nowadays the biggest risk for the polar bear species is global warming. It effects specially to Earth's northern regions which are the polar bears habitats. The global warming at the Arctic is twice as fast as on the other places. That's why the rice of low is few Celsius higher at the Arctic.Because of the Global warming arctic ice melts earlier and form later so the polar bears have less time to find food. Longer fasting season impairs polar bears condition and it's particularly damaging for pregnant females and cubs.There could be local extinction if the increasing deteriorates. The global warming complicates food intake because thinner sea ice tends to make it more difficult for polar bears to access seals. The species features should be transformed as quickly as climate change that the polar bears could survive. I  n 1973, Canada, United States, Denmark, Norway and the then Soviet     Union signed an agreement    on polar   bear hunting restrictions and habitat conservation. Since then the number of polar bears have stabilized about 25 000 individuals.

Jarna Häkkinen, Emma Kolojonen and Sofia Metsi