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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.
Tyrone Hayes is a professor and researcher who studies the role of steroid hormones in amphibian development and differentiation. He conducts laboratory and field studies in the U.S. and Africa on metamorphosis, sex differentiation, growth, and aggressive behavior.
Tyrone B. Hayes (29 de julho de 1967) é um biólogo americano e professor de Biologia Integrativa na Universidade da Califórnia, Berkeley, conhecido por sua pesquisa concluindo que o herbicida atrazina é um desregulador endócrino que desmasculiniza e feminiza sapos machos.
My research focuses on the role of steroid hormones in amphibian development and I conduct both laboratory and field studies in the U.S. and Africa. The two main areas of interest are metamorphosis and sex differentiation, but I am also interested in growth (larval and adult), immune function, and hormonal regulation of reproductive behavior.
At the University of California, Berkeley, and in ponds around the world, professor Tyrone Hayes studies frogs and other amphibians. He's become an active critic of the farm chemical atrazine, which he's found to interfere with the development of amphibians' endocrine systems.
2 de fev. de 2014 · After seeing an e-mail in which a lobbyist characterized him as “black and quite articulate,” he began signing his e-mails, “Tyrone B. Hayes, Ph.D., A.B.M.,” for “articulate black man.”
Dr. Tyrone Hayes discusses his journey as a scientist: initially just a “young boy who really liked frogs,” he would go on to earn worldwide fame for his work on the harmful effects of the pesticide atrazine.
