877 篇文章
The ibex choose the steepest cliffs to raise their young,
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The ibex choose the steepest cliffs to raise their young, 羱羊选择在最陡峭的绝壁上养育幼仔

they have had to adapt both their body and their behaviour in order to survive.
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they have had to adapt both their body and their behaviour in order to survive. 为了生存 他们必须从体型和行为上 充分适应环境

With a head bob of acknowledgement, their mother now leaves.
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With a head bob of acknowledgement, their mother now leaves. 点头示意之后 他们的母亲出发了

Everything will be fine, as long as their father comes back soon.
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Everything will be fine, as long as their father comes back soon. 只要父亲尽快回来 情况就会好转

Their survival depends on their father returning with their next meal.
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Their survival depends on their father returning with their next meal. 生存与否取决于它们的父亲 能否带着食物归来

the penguins have to risk their lives.
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the penguins have to risk their lives. 这些企鹅得冒着生命危险

When migrating red crabs march into their territory,
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When migrating red crabs march into their territory, 当迁徙的红蟹经过它们的领地时

Their ancestors came from the sea,
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Their ancestors came from the sea, 它们的祖先来自海洋

As their chicks grow,
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As their chicks grow, 随着雏鸟一天天长大

provide their young with a rather less precarious start in life.
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provide their young with a rather less precarious start in life. 小鸟的幼年过得安全一些