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Every year, Monarch Butterflies migrate to warmer forested areas in Central Mexico and Coastal California to overwinter, so they can survive the colder inclement conditions.But over the past few decades, the number of monarchs overwintering in Mexico has declined by as much as 80%, and monarchs overwintering in California has dropped by nearly 100%. The U.S. Fish and Wildlife Service recently recommended listing monarchs as a threatened species under the federal Endangered Species Act in response, although advocates say that could make the situation worse.Delaware Public Media’s Joe Irizarry caught up this week with Michael Crossley – an Assistant Professor and Agricultural Entomologist at the University of Delaware who wrote about the issue – for more on why fewer Monarch Butterflies are overwintering and if federal protections could help or harm this iconic species.

In today’s information-driven world, math is everywhere; shaping the people we meet, the news we consume, and the jobs we get. Whether we recognize it or not, our ability to speak the language of math plays a crucial role in determining who holds social and economic power and who doesn’t.The new documentary ‘Counted Out’ delves into the math that underpins our democracy and how to become fluent in the numbers that shape our world. Starting this Sunday, the Delaware Council of Mathematics Leaders (DCML) is hosting a screening of ‘Counted Out’ in each county.In this edition of Enlighten Me, Delaware Public Media’s Martin Matheny is joined by Crystal Lancour – past President of DCML and current Supervisor of Mathematics in the Colonial School District – and Jamila Riser – Executive Director of the Delaware Mathematics Coalition – for a preview of ‘Counted Out.’

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The next steps in the fatal midair plane and helicopter crash investigation. And, why nuclear testing could ramp up in the U.S., as well as a look inside the secret lab where weapons testing happens.

President Trump's efforts to cut the federal workforce by 10% might not save as much money as hoped and could have unintended consequences. NPR explains why.

NPR speaks with Michael McCormick, former vice president of the FAA Air Traffic Organization, about reports that the airspace above Reagan airport has long raised safety concerns.

High sugar cereal brands target TV ads directly to kids under age 12. And this targeted advertising leads to greater household purchases of unhealthy kid cereals, a new study finds.

Germany's likely next chancellor is being criticized for relying on support from far-right lawmakers to pass a bill to reduce migration into the country.

This week was hard on the conflict-averse. But if you're up on nursery rhymes, prehistoric bodily fluids and Renaissance art, you'll get at least three right this week.

In a small ashram nestled on a quiet residential street near Laguna Beach, Radhika Vekaria is finding peace after receiving her first ever Grammy nomination.