Episode (200)
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Where Did Curly Hair Come From? Biological Anthropology May Provide Insights
Feb 21, 2025It’s fairly strange that humans, unlike many other mammals, don’t have hair all over. Our lack of body hair and wide geographic distribution led to the variation of sun-protective melanin in our skin....
Exploring the Hidden Life in the Air around Us with Carl Zimmer
Feb 19, 2025Scientists now agree that COVID spreads via airborne transmission. But during the early days of the disease, public health officials suggested that it mainly did so via close contact. The subsequent b...
Valentine’s Day Isn’t Just for Romance—The Science of Deep Friendships
Feb 14, 2025Love isn’t just about romance. This Valentine’s Day, we’re exploring the power of deep nonromantic bonds. Host Rachel Feltman sits down with Rhaina Cohen, a producer and editor for NPR’s podcast Embed...
An Asteroid May Hit Earth in 2032. What Can We Do about It?
Feb 12, 2025The European Space Agency recently announced that the near-Earth asteroid 2024 YR4 has a 2 percent chance of hitting our planet in 2032. The probability of impact is difficult to predict exactly and w...
Microplastics on the Mind, Superstrong Shrimp and Bird Flu Transmission
Feb 10, 2025A subtype of H5N1 bird flu that has been found in cattle for the first time suggests that the virus jumped from birds to the animals twice. A headline-making study estimates that we have a spoon’s wor...
Trump’s Executive Orders Create Confusion for Researchers
Feb 07, 2025The first few weeks of the Trump administration have been marked by chaos and confusion for the nation’s health and science agencies. A funding freeze broadly targeting language around diversity, equi...
Avoiding Outrage Fatigue in Overwhelming Times
Feb 05, 2025It’s almost impossible not to feel outraged these days. But overexposure to information that makes us angry can wear us down. Senior health and medicine editor Tanya Lewis joins host Rachel Feltman to...
Tuberculosis Outbreak, RFK, Jr.’s Confirmation Hearings and Polar Bear Hair
Feb 03, 2025This week we’re recapping Robert F. Kennedy, Jr.’s confirmation hearings. Highly pathogenic H5N9, a strain of bird flu, was found in U.S. poultry. A tuberculosis outbreak in Kansas is making headlines...
Are You Tired of Feeling Cynical? Hopeful Skepticism Could Be a Way Out
Jan 31, 2025It’s easy to be cynical about the state of the world—even when you’re a researcher who studies empathy and kindness. Stanford University psychologist Jamil Zaki turned his own negativity into his new ...
Science Will Stare Directly Into the Sun--And Love It
Jan 29, 2025The sun is in the middle of its solar maximum, the part of its 11-year solar cycle that was responsible for the stunning auroras seen across the globe last year. This year is looking equally exciting,...