A pesticide weed killer, called Atrazine, which is used in the Midwest for corn fields, can possibly "castrate" male frogs and turn some males into females, according to this CNN article. Its frightening to know that this pesticide is effecting the levels of hormones in frogs enough to turn a male into a female and by doing so, greatly disrupting their ecosystem . Makes you wonder what these pesticides may be doing to us....
http://www.cnn.com/2010/TECH/science/03/01/pesticide.study.frogs/index.html?eref=igoogle_cnn
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