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Polar bears and climate change

Polar bears are not able to adapt quickly enough to climate change, according to a study published in the Journal of Experimental Biology. By losing ice, they use up to four times more energy to survive in arctic conditions. According to research, they have to work much harder than before to get food and stay alive. The Arctic world is now more unpredictable for these mammals.

Research shows that polar bears now swim for an average of three days to find seals or to look for less energy-intensive food sources. This means that they are much more likely to starve. The scientists say the destruction of polar bears is likely to have a knock-on effect on other ice-dependent mammals, leading to rapid changes throughout the Arctic marine ecosystem. Arctic foxes and musk oxen, for example, may also be exposed to similar problems.