深度剖析：为什么生男孩越来越难

本文选自《北外网院》的博客，点击查看博客原文

　　The soaring number of gender-bending chemicals in the environment has disturbing fertility implications for humans and wildlife, scientists are warning.

　　科学家警告说，环境中有越来越多可以改变性征的化学物，这对人类和野生动物的繁殖力产生了负面影响。

　　They say wild animals are being "feminised" by a host of common man-made pollutants which

　　mimic the female sex hormone oestrogen and escape into seas, rivers, the earth and air when

　　waste is disposed of.

　　科学家说，由于一些产生雌性激素效应的人为污染物被处理时流失到大海、河流、土地以及空气中，因此，野生动物变得“雌性化”。

　　The chemicals--found in food packaging, cleaning products, plastics, sewage and paint--cause

　　genital deformities, reduce sperm count and even turn males into females.

　　这些化学品可以在食物包装材料、清洗剂产品、塑料、污水和涂料中找到。他们可能会造成生殖器畸形、精子数量减少，甚至令雄性变成雌性。

　　Dozens of species--including polar bears, fish, whales and otters--are suffering, according to

　　the environmental group ChemTrust.

　　据环保组织ChemTrust说，包括北极熊、鱼类、鲸鱼和水獭在内的数十种动物都受到了这种影响。

　　Fish have been badly hit by man-made gender-bending chemicals. In one study, half the male

　　fish in British lowland rivers had signs of being feminised.

　　人为的改变性征的化学物对鱼类的影响特别大。一项研究显示，英国下游河流中一半左右的雄性鱼都有雌性化的迹象。