Male Frogs May Be Turning Female Thanks to Estrogen in Suburban Waste

Estrogen, shrubbery, and the sex ratio of suburban frogs

What do you think of frogs? - Quora

Infectious Disease and Contaminants in Urban Wildlife: Unseen and Often Overlooked Threats

Presentación del proyecto Estrógenos de Código Abierto. Mary Tsang

Why aren't many Millennials having children? - Quora

Why are the frogs turning gay? - Quora

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why cant i get free estrogen i eat mcdonalds : r/traaaaaaannnnnnnnnns

Healthy frogs can mysteriously reverse their sex

Frogs - Pollution - Amphibian Abnormalities - The New York Times

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Mary Tsang: Address, Phone Numbers, Age, Public Records