myrdos2 writes "A host of common chemicals is feminizing males of every class of vertebrate animals, from fish to mammals, including people. Many have been identified as 'endocrine disruptors' or gender-benders because they interfere with hormones. Communities heavily polluted with gender-benders in Canada, Russia, and Italy have given birth to twice as many girls as boys, which may offer a clue to the mysterious shift in sex ratios worldwide. And a study at Rotterdam's Erasmus University showed that boys whose mothers had been exposed to PCBs grew up wanting to play with dolls and tea sets rather than with traditionally male toys. It also follows hard on the heels of new American research which shows that baby boys born to women exposed to widespread chemicals in pregnancy are born with smaller penises and feminized genitals. It is calculated that 250,000 babies who would have been boys have been born as girls instead in the US and Japan alone. And sperm counts are dropping precipitously. Studies in more than 20 countries have shown that they have dropped from 150 million per milliliter of sperm fluid to 60 million over 50 years."