According to a fascinating new study, curly locks are better than straight hair at keeping your scalp cool. Researchers shone bright lights on three different manikins—one with no hair, one with loosely curled hair and another with tight curls.
Solar radiation bounced off the tightly curled hair, and less heat reached the manikin’s scalp than the straight haired manikin. The manikin with loose curls was right in the middle. The research is part of an effort to better understand the role of hair texture in human evolution, as humans are the only mammals with the majority of body hair atop our heads.
Ira talks with Dr. Tina Lasisi, a postdoctoral researcher in the department of quantitative and computational biology at the University of Southern California, and incoming assistant professor of Anthropology at the University of Michigan.
Unprecedented Avian Flu Outbreak Continues
Avian influenza has been circulating for decades among wild birds, but the US is now experiencing the worst outbreak in its history. That’s because of a specific strain of highly pathogenic avian influenza, which has left around 60 millions birds—mostly poultry—dead. This has implications for us all, whether you’re frustrated about the price of eggs, worried about your backyard chickens, or concerned about yet another threat to public health.
In this live call-in, Ira talks with Ashleigh Blackford, the California Condor Coordinator at the US Fish & Wildlife Service about the initiative to vaccinate California condors—the first of its kind to vaccinate any bird.
Then Ira explores what this outbreak means for other wildlife, poultry, and for us. He talks with Dr. Kristy Pabilonia, professor and director of the Veterinary Diagnostics Laboratories at Colorado State University, and Dr. Richard Webby, director of the WHO’s Collaborating Center for Studies on the Ecology of Influenza in Animals and Birds and a researcher at St. Jude’s Children’s Research Hospital.
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Transcripts for each segment will be available the week after the show airs on sciencefriday.com.
649: How AI Chatbots Can Reinforce Racial Bias In Medicine
651: An Exoplanet Where It Rains Sand
648: Ask A Chef: How Can I Use Science To Make Thanksgiving Tastier?
645: Monumental And Invisible: How Infrastructure Works
647: Everything You Never Knew About Squash And Pumpkins
644: How A University Is Adjusting One Year After ChatGPT
646: Euclid Telescope’s First Images | A Black Hole That Came From Gas
642: How Five Elements Define Life On Earth
639: Climate Future Exhibit | Oregon's Proposed Fish Vacuum
641: How A Deaf Advisory Group Is Changing Healthcare
643: 40 Years Of Sounding The Alarm On Nuclear Winter
640: CRISPR-Based Sickle Cell Treatment | Pain Tolerance From Neanderthals
637: How Poisons Have Shaped Life On Earth
635: Placenta Research May Help Explain Pregnancy Loss
634: A Common Cold Medicine Ingredient Doesn’t Work. What Now?
633: Diving Into Elon Musk’s Mind
636: RSV Drug Shortage & Beech Leaf Disease
632: When Studying Ecology Means Celebrating Its Gifts
632: Unlocking The Mysteries Of A Metal-Rich Asteroid
631: Rapidly Evolving Trout & Ancient Hyper-Apex Predators
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