Description:
Cameras attached to 20 polar bears near Churchill,Canada are offering a rare glimpse into their lives, recording their activities and seeing how they have changed over the past several years as sea ice is now taking up to a month longer to form.
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Transcription:
Reporter: This is a rare glimpse into the secret lives of polar bears.
Cameras attached to 20 bears near Churchill, Canada the polar bear capital of the world recorded their activities in August and September of 2019, '21 and '22, revealing their eating habits on land and what U.S. Geological Survey scientist Anthony Pagano and others discovered isn't good.
Can you explain to me what your research found?
Scientist: Our findings indicate that polar bears in Western Hudson Bay are at risk of starvation as foods on land are not an adequate replacement for seals on the sea ice.
Reporter: The sea ice is both the hunting platform and dining room table for these bears to feast on nutrient-rich fatty seals, but with the ice taking up to a month longer to form in our warming world, the hungry bears are spending more time on land, eating berries, grasses and even caribou antlers.
Reporter: Are these bears eating empty calories?
Scientist: I would not say empty calories and they're gaining enough energy to find those foods, but they're not getting an actual net benefit to would prolong how long they could survive on land.
Reporter: The cameras revealed one bear swam more than 30 miles after catching a seal, but without a table of sea ice, it could not eat. She took a couple of bites, but she spent most of the night trying to swim that seal back to shore before eventually dropping it.
Reporter: Caught on other cameras, hungry bears looking for food, infiltrating the small town of Churchill as we showed you last year.
Police Officer: six tried to walk into town today.
Reporter: Six?
Police Officer: yes.
Reporter: Out on the tundra where the bears should be Jeff York explained the problem.
Jeff York: You can see in Hudson Bay there's really no ice at all.
Reporter: Scientists say that does not bode well for Churchill or the bears.
Jeff York: It's the younger bears that will be at greatest risk of starvation in the future.
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Questions:
1. How do the camera recordings of polar bears near Churchill, Canada reveal their eating habits and the challenges they are facing?
2. What is the significance of the sea ice for polar bears in Western Hudson Bay and how is its delayed formation impacting their ability to hunt for seals?
3. What are the potential consequences of the lack of sea ice on the survival of polar bears in Churchill, particularly for the younger bears?