the male takes over for the most testing shift. 雄鸵鸟就会接手这项辛苦的工作
Lands like these cover over a third of our planet. 像这样的土地覆盖了地球上超过三分之一的面积
Over a million tons is left adrift in the ocean each year. 每年有超过一百万吨渔具被丢弃到海洋中
this female's eggs could take over ten years to develop. 雌性珍珠章鱼卵发育时间长达十数年之久
But it appears that school is over for today. 但似乎今天的课程到此为止了