在海洋中，我们捕捞像鳕鱼这样的顶级食肉动物。

In the ocean，we fished for top predators such as cod.

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有些实验不道德：你不能从窝里把狮子抓来，却只为了研究顶级食肉动物移居的影响。

Many experiments are unethical: you can't take a lion from its home simply to study the effects of top-predator removal.

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总的说来，乌贼的能量需求比暖血的鲸低300到600倍，鲸是另一种南极海域的顶级食肉动物。

Overall, the squid's energy requirements are 300 to 600 times lower than those of warm-blooded whales, the other top predators in Antarctic waters.

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