CBC’s As It Happens Podcast: When a polar bear kills, it doesn’t just eat. It feeds a whole ecosystem
October 29, 2025 —
When a polar bear kills its prey, it’s not the only one who gets to reap the bloody benefits. Many of nature’s apex predators guard their dinner from scavengers until they’ve gobbled up every last morsel and licked the bones clean. But scientists say polar bars tend to eat what they need, and leave the rest behind for other Arctic critters to munch. “If we lose polar bears from the Arctic … nothing can replace that,” Holly Gamblin, Lead author and wildlife biologist at University of Manitoba, told As It Happens host Nil Köksal. “There’s no other comparable species that is doing this.”
To listen to the podcast and read about the story, please visit CBC’s As It Happens.





