The playful calf is now drinking five hundred liters of milk a day 顽皮的小座头鲸每天要喝500公升奶
Despite being three meters long and weighing nearly a ton, he is nonetheless vulnerable. 虽然已经三米长,一吨重 还是比较虚弱,也容易受攻击
A male humpback whale sings to attract a mate. 一只雄性座头鲸正在用歌声吸引雌鲸来交配
The calf is no more than a few weeks old. 幼鲸才刚刚几周大
All together they constitute a mere eight percent of the world's oceans 尽管浅水域仅仅占据了8%的海洋
The rainforest's great diversity has come at a cost. It has made them the most finely balanced ecosystems in the world 雨林的物种多样性正在消失 而雨林却是维持地球生态系统微妙平衡的关键
It may simply be a chance for some extra protein. 也可能是为了获得额外的蛋白质吧
Killing a competitor makes sense if you want to protect your food supply 捕杀敌人虽然有利于保证自己的食物供给
It's a ferocious attack, and she's lucky to escape with her life. 面对这凶猛的攻击,这只母猩猩侥幸得以活下来
The battle won, a grizzly scene unfolds. 战斗胜利,出现了一个可怕的场景