Studies show that male fish in detergent-contaminated water express female characteristics, turtles are sex-reversed by PCBs, male frogs exposed to a common herbicide form multiple ovaries, pseudohermaphroditic offspring are produced by polar bears, and seals in contaminated water have an excess of uterine fibroids.    From Wordnik.com.  [Dan Agin: Plastic Bottles, Poison, and Endocrine Disruptors] Reference