pigeons are now having to learn to avoid a fish 鸽子现在却要学会避开水里的鱼
But having a beak longer than your body does have its drawbacks. 不过 喙比身体长也是有缺点的
But imagine having to learn these skills as high up as this. 但是要在这么高的地方学习这些技巧
But the newborn kids are still having to find their feet. 但新生的雏羊还在蹒跚学步
and now humans are having to control them. 而现在人类不得不采取措施控制局面
having split away from Africa over 120 million years ago. 它在一亿两千万年前就已经脱离非洲大陆
This female has the added pressure, of having to provide for her one year old cub. 这只雌豹因为要抚养她的一岁大的孩子 而担负着更大的压力
Having fed the predators, the cicadas leave one final gift for the forest itself. 喂饱了掠食者后,蝉给森林留下了最后的礼物
may live and die without ever having contact with humanity. 可以不受人类干扰地生存和死亡
Having survived the dry, barren times, animals can now reap the rewards. 经历了干旱贫脊之后 动物们现在可以享受成果了.