A.K.A. "Mr. Mom"

Accused of: Creating transsexual frogs by changing testosterone into estrogen causing male frogs to develop ovaries. Causes other reproductive maladies in lab animals. Also associated with ovarian tumors in women, and linked to non-Hodgkin's lymphoma, breast and prostate cancers.

Last seen: One of the most widely used herbicides in the U.S. Found in runoff from corn-fields and then in rivers, wells and drinking water and also found in rain water far downwind from where it is applied (isn't the water cycle amazing?).

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