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How did these flowers evolve to survive a megadrought?
Episode 1450
A multi-year megadrought in the Western U.S. has claimed untold populations of wild plants. Amid the conditions, some have survived. Scientists have …
3 months, 1 week ago
A dietitian and doctor review RFK Jr's new food pyramid
The new food pyramid was released earlier this year. It emphasizes protein, full-fat dairy and what Health and Human Services Secretary Robert F. Ken…
3 months, 2 weeks ago
‘Black rain’ in Iran and the environmental cost of war
US-Israeli airstrikes on oil depots culminated in ‘black rain’ in Iran early last week – a phenomenon usually caused by large amounts of soot, carbon…
3 months, 2 weeks ago
This is your brain on pleasure (even the guilty kind)
It’s likely you have at least one “guilty pleasure.” Maybe it’s romance novels. Or reality TV… Playing video games… or getting swept into obscure cor…
3 months, 2 weeks ago
An icy mystery: What are lake stars?
When producer Berly McCoy was out on her local frozen lake, she saw something she'd never seen before. There were dark spidery, star-shaped patterns …
3 months, 2 weeks ago
We saved gray whales from extinction. Why are so many dying again?
In 1999 hundreds of gray whales washed up along the west coast of North America. More in 2000. They lost an estimated 25% of their population. But th…
3 months, 3 weeks ago
Sibling order may affect sexuality and identity
Today, guest host Selena Simmons-Duffin is exploring a detail very personal to her: How the number of older brothers a person has can influence their…
3 months, 3 weeks ago
What crocodile bones teach us about dinosaurs
Episode 1443
Paleontologists have often determined how old a dinosaur was by counting the growth rings in its bones. Just like with trees, it was thought that eac…
3 months, 3 weeks ago
Teen sleep is getting wrecked by more than just phones
Episode 1442
Teens aren’t getting enough sleep! And a two-decade study suggests it’s getting worse. Scientists found that the number of high schoolers getting ins…
3 months, 3 weeks ago
The global fallout of RFK Jr's vaccine policies
In his role as Secretary of Health and Human Services, Robert F. Kennedy, Jr. is changing how the United States approaches vaccines. But those change…
3 months, 4 weeks ago