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Cause of concern: Polar bears being shot dead  in Norway's Arctic worries authorities

Cause of concern: Polar bears being shot dead in Norway's Arctic worries authorities

Dangerous encounters with humans are getting more frequent as visitors increase and global warming melts the sea ice on which the creatures roam.

Polar bears losing life-sustaining sea ice: Study

Polar bears losing life-sustaining sea ice: Study

According to scientists, the Arctic is warming at nearly double the global rate as a result of climate change fuelled by mankind's burning of fossil fuels, a process that emits heat-trapping greenhouse gases.

Russian scientists trapped by polar bears receive emergency supplies

Russian scientists trapped by polar bears receive emergency supplies

A passing ship has delivered flares and dogs to the station to help fend off the beasts, Xinhua news agency reported on Thursday.

Five Russian scientists beseiged by polar bears in Arctic; waiting for rescue!

Five Russian scientists beseiged by polar bears in Arctic; waiting for rescue!

Five Russian scientists have been trapped by polar bears at a weather station on the Troynoy island in the Kara Sea.

This is what climate change is doing – Skeletal image of polar bear goes viral! - See pic

This is what climate change is doing – Skeletal image of polar bear goes viral! - See pic

If this is not controlled soon, one of the species ranked number one on the food chain will become extinct.

Polar bears may be superb divers: study

Polar bears may be superb divers: study

 Polar bears are known to be excellent swimmers, and they may also be superb divers, suggest scientists who observed a polar bear staying under water for over three minutes, setting a new record.

Polar bear Y chromosome reconstructed

Scientists have for the first time reconstructed part of the male chromosome in polar bears and have found out why the Y chromosome is so important.

Polar bears can't cope with starvation in summers: Study

Polar bears can't cope with starvation in summers: Study

A new study has revealed that polar bears' metabolism cannot cope with starvation associated with warmer summers in the Arctic.

Polar bears face steep declines because of melting sea ice: US study

Polar bears face steep declines because of melting sea ice: US study

Imperiled polar bears will see a population crash in most parts of the Arctic Ocean if global greenhouse gas emissions continue at current rates, causing accelerated melting of the sea ice the bruins depend on for survival, US scientists said on Wednesday.

Why polar bears can't survive on land

Why polar bears can't survive on land

Polar bears, increasingly being forced on shore due to sea ice loss, may be eating land-based foods including berries, birds and eggs.

Loss of sea ice to impact polar bear populations by 2100

Loss of sea ice to impact polar bear populations by 2100

Polar bears may face starvation and reproductive failure by the year 2100 due to heavy loss of Arctic sea ice, a new study has warned.

Key to healthy heart hidden in obese polar bears!

Polar bears are the most fat-obsessed beasts but have healthy hearts and this may hold the genetic key for humans to avoid heart disease, a promising research has found.

Polar bears join natural wonders at Google Maps

Google on Thursday added polar bears to the natural splendor people can glimpse from the comfort of their homes at the Internet giant`s free online mapping service.

How polar bears stay warm

Researchers have suggested that genetic adaptations related to the production of nitric oxide, a compound that cells use to help convert nutrients from food into energy or heat, helps polar bear stay warm.

Brown bears `descendants` of ancient polar bears, not modern

Brown bears on an Alaskan archipelago are the descendants of an ancient polar bear population rather than being the ancestors of modern polar bears, a new study has found.

`Polar bears could be extinct in 25 years`

For a millennium, the majestic, lily-white polar bear has lorded over the frozen wastes of the Arctic.

Polar bears losing fur from mystery illness

Polar bears in Alaska have been seen with missing patches of fur, and reports say it may be due to a "mystery illness" related to the nuclear accident at the Fukushima power plant in Japan.

WWF Russia seeks foster parents for 500 polar bears

WWF Russia estimates that about 500 polar bears will get "foster parents" by the end of 2012.

Polar bears ancestors originated in Ireland

The overlaps then led to hybridisation, or interbreeding, which is an event that caused maternal DNA from brown bears to be introduced into polar bears.

Polar bears ‘threatened’, not ‘endangered’

The Obama administration has confirmed that polar bears are threatened rather than endangered.