"Our work shows that, for a frog, the suburbs are very similar to farms and sewage treatment plants," researcher Max Lambert said.NEW HAVEN, Conn., Sept. 8 (UPI) -- Male frogs seeking a mate might have better luck in suburban ponds -- that's if they don't mind the risk of turning into females themselves. Researchers at Yale University found suburban ponds, near shrubs, backyard gardens and manicured lawns, feature higher ratios of female green frogs than do ponds surrounded by forest. The new study, published in the journal Proceedings of the National Academy of Sciences, suggests higher levels of estrogen in...