To cement their relationship, the male steps out with his female. 为了巩固它们的关系 雄企鹅跟雌企鹅走出行列
with the droppings of tens of thousands of nesting penguins. 它们的粪便使山顶看起来一片粉红
Both poles of our planet are covered with ice. 地球的两极都被冰覆盖着
swarms join up with other swarms 一团蝗虫云也会和其它蝗虫云汇合
There are plenty of flies to go round, even with hundreds of lizards competing for them. 尽管已有几百只蜥蜴在此捕猎 这里仍聚集着无数飞虫
so he can concentrate with them on keeping fit and healthy. 所以它要做的只是保证它们健康精壮
With little or no soil to retain the water on the surface of the land 由于几乎没有土壤保留地表水分