Sperm crisis The most widespread effect of environmental hormones currently known about is that of estrogen-mimicking compounds. Around the world, abnormal gender ratios, with females outnumbering males, have appeared in many animals, and the global phenomenon of the "feminization of nature" has become a serious issue in ecology.
蟲蟲危機目前已知最廣泛的環境荷爾蒙作用，正是具有模仿雌性激素的化合物，全球也出現許多動物「女多於男」的異常比例，地球上的「雌化自然」現象，更已成為生態學的嚴肅課題。