In this 182nd in a series of live discussions with Bret Weinstein and Heather Heying (both PhDs in Biology), we discuss the state of the world through an evolutionary lens. In this episode we discuss the herbicide atrazine, its effects on reproductive development in amphibians, its persistence in the environment, its safety testing, and its valorization by the New York Times and the CDC. We also discuss male nipples—why do they exist?—and the CDC’s ongoing capitulation to stupid with its glossary entry on chestfeeding. ***** Our sponsors: PaleoValley: Wide array of amazing products, including 100% grass fed, organic, naturally fermented beef sticks. Go to https://paleovalley.com/darkhorse for 15% off your first order. MDHearing: Use promo code DARKHORSE to receive a significant discount off your order of already inexpensive, high-quality hearing aids, plus receive a free extra charging case. https://www.mdhearingaid.com UnCruise: Get $500 off any adventure cruise on a small ship into destinations including Galapagos, Panama, Alaska, and the San Juan Islands: https://uncruise.com/pages/darkhorse/ ***** Our book, A Hunter-Gatherer’s Guide to the 21st Century, is available everywhere books are sold, including from Amazon: https://a.co/d/dunx3at Check out our store! Epic tabby, digital book burning, saddle up the dire wolves, and more: https://darkhorsestore.org Heather’s newsletter, Natural Selections (subscribe to get free weekly essays in your inbox): https://naturalselections.substack.com Locals: https://darkhorse.locals.com/support Find more from us on Bret’s website (https://bretweinstein.net) or Heather’s website (http://heatherheying.com). Become a member of the DarkHorse LiveStreams, and get access to an additional Q&A livestream every month. Join at Heather's Patreon. Like this content? Subscribe to the channel, like this video, follow us on twitter (@BretWeinstein, @HeatherEHeying), and consider helping us out by contributing to either of our Patreons or Bret’s Paypal. Looking for clips from #DarkHorseLivestreams? Check out our other channel: https://www.youtube.com/channel/UCAWCKUrmvK5F_ynBY_CMlIA Theme Music: Thank you to Martin Molin of Wintergatan for providing us the rights to use their excellent music. ***** Q&A Link: Mentioned in this episode: EPA on atrazine: https://www.epa.gov/ingredients-used-pesticide-products/atrazine Hayes et al., 2002. Hermaphroditic, demasculinized frogs after exposure to the herbicide atrazine at low ecologically relevant doses. PNAS 99(8): 5476– 5480: https://www.pnas.org/doi/full/10.1073/pnas.082121499 Reeder et al 1998. Forms and prevalence of intersexuality and effects of environmental contaminants on sexuality in cricket frogs (Acris crepitans). Environmental Health Perspectives, 106(5): 261– 266: https://ehp.niehs.nih.gov/doi/pdf/10.1289/ehp.98106261 Jablonowski et al 2011. Still present after all these years: persistence plus potential toxicity raise questions about the use of atrazine. Environmental Science and Pollution Research, 18: 328-331: https://link.springer.com/article/10.1007/s11356-010-0431-y NYT: 5 Noteworthy Falsehoods Robert F. Kennedy Jr. Has Promoted: https://www.nytimes.com/2023/07/06/us/politics/rfk-conspiracy-theories-fact-check.html Gammon et al 2005. A risk assessment of atrazine use in California: human health and ecological aspects. Pest Management Science: formerly Pesticide Science, 61(4): 331-355: https://onlinelibrary.wiley.com/doi/abs/10.1002/ps.1000 Where science meets business: https://www.soci.org/publications/pest-management-science Bethsass & Colangelo 2006. European Union bans atrazine, while the United States negotiates continued use. International journal of occupational and environmental health, 12(3): 260-267.https://www.tandfonline.com/doi/abs/10.1179/oeh.2006.12.3.260 CDC glossary: https://www.cdc.gov/nutrition/emergencies-infant-feeding/glossary.html *****