纪录片《非洲》 第106期:非洲的未来（25）

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Africa is almost completely surrounded by oceans.

非洲几乎完全被海洋包围着

Here on the east coast, there are animals

在这片东海岸 动物们已经

feeling the changing climate in a most surprising way.

感受到了气候的惊人变化

This is a young female green turtle.

这是一只年轻的雌海龟

During her lifetime, she will travel thousands of miles

在她的一生中 她将在海洋里

through the ocean looking for food.

横穿几千英里去寻觅食物

Turtles return to the same beach which they hatched¹

海龟回到孵化它们的沙滩

to lay their own eggs.

产下海龟蛋

The eggs are buried in the sand

海龟蛋埋在沙砾中

and the hatchlings will emerge² after about two months.

大概两个月后幼龟破壳而出

But there's a strange thing about turtle eggs.

但海龟蛋有个奇怪的特点

And that is the temperature at which the eggs are kept

那就是海龟蛋所处地的温度

will determine the sex of most of the hatchlings.

会决定大多数幼龟的性别

If the sand temperature is high, they will be female,

如果沙滩温度高 就是雌龟

if it's low, they will be male.

温度低 就是雄龟

So global warming could have a crucial effect on turtle populations.

因此全球变暖对海龟数量有着关键影响

And this young female may find it very difficult in years to come

这只年轻的雌龟在未来几年

to find a male with which to mate.

将难以找到雄龟和她交配

1 hatched   

孵化( hatch的过去式和过去分词 )； 孵出，破壳而出； 秘密策划，（尤指）密谋； 使（小鸟、小鱼、小虫等）孵出

参考例句：

• Silkworms are fed mulberry leaves after they have hatched. 蚕孵出后食桑叶。
• Ten out of the set of twelve were hatched. 一窝十二个蛋孵出了十个。

2 emerge   

vi.（从水中等）出来，出现，浮现，形成

参考例句：

• The baby's head was starting to emerge from the womb.婴儿的头开始从母亲的子宮中露出来。
• It's still hard to tell who will emerge victorious.鹿死谁手尚难逆料。