英式拼写
First though valuable nesting places must be defended from property thieves. After laying their eggs the petrels take time out to clean their plumage. The south polar skua is a formidable opportunist but the skuas have not chanced upon the petrels they've been waiting for them. These birds do not need to go to the ocean for their food. The skuas can survive further south than any other predator by exploiting the petrels' desperate need for bare rock. Even at the height of summer less than 3% of Antarctica is free of ice and nearly all of that exposed rock is found in one place - the Antarctic Peninsula. Its long arm extends further north than the rest of the continent, so spring arrives here first.来之不易的孵化地，最重要的是要防止窃贼。雪鹱下完蛋之后会仔细地把羽毛清理干净，以免留下招引天敌的痕迹。灰贼鸥是雪鹱的一种潜在的天敌，贼鸥对雪鹱从不主动出击，而是等待雪鹱的到来。现在它们不需要费力地到海洋里去寻找食物了。贼鸥是生活在最靠近南极的食肉动物，但它们的生活一点儿也不比别人差，唾手可得的食物就陈放在裸露的岩石上。即使是在盛夏季节，南极也只有不到百分之三的地方没有冰雪覆盖，而且几乎所有露出的地面，只集中在一个地方——南极半岛。这块地方像一只向温带伸出的长臂，所以这里的春天来得最早。
发表于 2016-8-2 11:43:45