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Inside the 'World’s largest snake den': 100,000 red-sided garter snakes huddle beneath Manitoba
Every spring in Manitoba, up to 100000 red sided garter snakes emerge from underground limestone dens, forming swirling mating balls. Why do they gather here in such astonishing numbers?
The hosts of NPR's All Things Considered help you make sense of a major news story and what it means for you, in 15 minutes. New episodes six days a week, Sunday through Friday.
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