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- [Angely] Earlier this month, Alaska saw

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its first deadly polar bear
attack in about 30 years.

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A 24-year-old mother
and her 1-year-old son

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were leaving a school in Wales.

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It was snowing at the time

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and a bear seemingly came out of nowhere.

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The polar bear then attacked
and mauled the pair.

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Residents tried to scare
the polar bear off,

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but it charged at them too.

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It was eventually shot and
killed by another local.

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It's actually unclear why this bear

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attacked the mother and son.

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But there is a connection
between climate change

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in the Arctic and
bear-to-human encounters.

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Polar bears are huge land predators

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and they need long distances
to hunt enough food.

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And they tend to hunt on sea ice.

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They eat seals and other marine animals.

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But as the climate crisis
brings warming temperatures,

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there's less sea ice in the arctic.

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Some polar bears now have
to travel longer distances

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and even hunt closer to where people live

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in order to find enough food to eat.

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Adult bears eat a lot, and they need it

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to survive the harsh
environments that they live in.

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But as they lose

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some of the crucial
hunting habitats up north,

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they have no choice but
to get closer and closer

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to where some humans
live to find enough food.

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Something like this can actually
happen all over the world.

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Consider that animals are
displaced by urban development,

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deforestation, and other human activities.

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This unfortunately forces more
human-to-wildlife encounters,

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and sometimes that means that
the animals or the people,

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or both parties, could get
hurt from these encounters.

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Thanks for watching "Extreme Earth."

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We're sorry that we have
to constantly remind you

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about all of this.