科研之友
微信
新浪微博
Facebook
分享链接
摘要
<正>Climate change is starving polar bears into extinction, according to research that predicts the apex carnivores could all but disappear within the span of a human lifetime. In some regions they are already caught in a vicious downward spiral, with shrinking sea ice cutting short the time bears have for hunting seals, scientists reported in Nature Climate Change.
