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b"Curly Hair Keeps Your Scalp Cooler\\nAccording 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\\u2014one with no hair, one with loosely curled hair and another with tight curls.\\nSolar radiation bounced off the tightly curled hair, and less heat reached the manikin\\u2019s 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.\\nIra 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.\\n\\n\\xa0\\nUnprecedented Avian Flu Outbreak Continues\\nAvian influenza has been circulating for decades among wild birds, but the US is now experiencing the worst outbreak in its history. That\\u2019s because of a specific strain of highly pathogenic avian influenza, which has left around 60 millions birds\\u2014mostly poultry\\u2014dead. This has implications for us all, whether you\\u2019re frustrated about the price of eggs, worried about your backyard chickens, or concerned about yet another threat to public health.\\nIn 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\\u2014the first of its kind to vaccinate any bird.\\nThen 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\\u2019s Collaborating Center for Studies on the Ecology of Influenza in Animals and Birds and a researcher at St. Jude\\u2019s Children\\u2019s Research Hospital.\\n\\n\\xa0\\nTo stay updated on all-things-science,\\xa0sign up for Science Friday's newsletters.\\nTranscripts for each segment will be available the week after the show airs on\\xa0sciencefriday.com."