I know the human being and the fish can coexist peacefully

"During the past thirty years, the number of male births has decreased each year in the U.S. and Japan. In a review of all births in both countries, the University of Pittsburgh-led study found significantly fewer boys being born relative to girls in the U.S. and Japan, and that an increasing proportion of fetuses that die are male. They note that the decline in births is equivalent to 135,000 fewer white males in the U.S. and 127,000 fewer males in Japan over the past three decades and suggest that environmental factors are one explanation for these trends."

 “We know that men who work with some solvents, metals and pesticides father fewer baby boys. We also know that nutritional factors, physical health and chemical exposures of pregnant women affect their ability to have children and the health of their offspring. We suspect that some combination of these factors, along with older age of parents, may account for decreasing male births.”
 - from scienceblog.com

Men, start washing your hands after using solvents, metals and pesticides, please.  The future of the human race may depend on it.  But wait, the most common solvent is water...we are doomed.  Women, stock your freezers...and I don't mean with frozen pizzas!