Could the harmones flushed down the toilet wind up giving your favorite species of trout what amounts to a sex change? According to the Vail Daily, it just might.
"Estrogen, the main female sex hormone, is the big culprit here. While most treatment plants remove 90 percent to 95 percent of chemicals and hormones from wastewater before it heads back to a river, trace amounts of estrogen are enough to alter the sex of a fish."Sex determination is dependent on hormones, and hormones from the outside could override the ones inside a fish," Vajda said.The consequence of too much estrogen in the water? The Waynes become Wandas, and women rule the river."