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.

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Theme Music: Thank you to Martin Molin of Wintergatan for providing us the rights to use their excellent music.

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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://onlineli

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