The south polar skua is a formidable opportunist. 南极贼鸥是可怕的机会主义者
Instead of waiting for the summer melt, the new arrivals hasten south over the frozen sea. 还没等到夏季解冻期的来临 这些鸟儿就急急忙忙从冰封的海洋赶到南极
When the first polar explorers headed south, 第一批极地探险家前往南方时候
These crevices in South Africa contain the highest density of lizards in the world. 非洲南部的这些岩缝中 容纳着世界上最大的蜥蜴群
These are South America's camels, guanacos. 这些是南美洲的骆驼——原驼
Clouds blowing from the south hit this gigantic barrier. 从南方过来的暖湿气流 撞上了这面巨大的屏障
On its way the system drains a third of South America. 全部流域面积达到南美洲的1/3
slid beneath the South American continent, buckling its edge. 俯冲到南美洲板块之下 造成它的边缘隆起