" The bears face an ever longer fasting period before the ice refreezes and they can head back out to feed, " Steven Amstrup, who conceived the study and is chief scientist of Polar Bears International, told AFP.
该研究的提出者、北极熊国际协会的首席科学家斯蒂芬·阿姆斯特拉普告诉法新社说:“在冰雪重新冻结、可以外出觅食前,北极熊面临着前所未有的超长禁食期。”