On this week’s show: Predators may be indirectly protecting Death Valley wetlands, and mapping odorant receptors First up this week on the podcast, News Intern Katherine Irving joins host Sarah Crespi to talk about the first photos of cougars killing feral donkeys in Death Valley National Park. They also discuss the implications for native animals such as big horn sheep, and plans to remove donkeys from the park. Also this week on the show, Paul Feinstein, professor of biology in the department of biological science at Hunter College, discusses a Science Signaling paper on a new approach to matching up smell receptors with smells—a long-standing challenge in olfaction research. This week’s episode was produced with help from Podigy. [Image: Angel Di Bilio/iStock; Music: Jeffrey Cook] [alt: photo of a burro on a hillside near Death Valley with podcast overlay symbol] Authors: Sarah Crespi; Katherine Irving Episode page: https://www.science.org/doi/10.1126/science.ade3366 About the Science Podcast: https://www.science.org/content/page/about-science-podcast Learn more about your ad choices. Visit megaphone.fm/adchoices

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