Study: Weedkiller in waterways can change frogs' sex traits
http://www.washingtonpost.com/wp-dyn/content/article/2010/03/01/AR2010030102331_pf.html
"A new study has found that male frogs exposed to the herbicide atrazine -- one of the most common man-made chemicals found in U.S. waters -- can make a startling developmental U-turn, becoming so completely female that they can mate and lay viable eggs."
http://www.washingtonpost.com/wp-dyn/content/article/2010/03/01/AR2010030102331_pf.html
"A new study has found that male frogs exposed to the herbicide atrazine -- one of the most common man-made chemicals found in U.S. waters -- can make a startling developmental U-turn, becoming so completely female that they can mate and lay viable eggs."