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Biography · Science & Inventions

Tyrone Hayes

1967–

United States

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Biography

Tyrone B. Hayes (born July 29, 1967) is an American biologist and professor of integrative biology at the University of California, Berkeley. He is known for his research in frogs, concluding that the herbicide atrazine is an endocrine disruptor that demasculinizes male frogs, causing them to display female characteristics. Hayes is an advocate for the critical review and regulation of pesticides as well as other chemicals that may cause adverse health effects.

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Biography text · CC BY-SA 4.0 · Source checked 2026-10-13

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