The book is divided into 4 parts, one for each of the Pacific, Atlantic, Indian and Arctic oceans.

该书分为四个部分，分别对应太平洋、大西洋、印度洋和北冰洋。

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First, at least some of the observed differences between the enzymes of the Atlantic and Pacific fish populations were not random, but were the result of evolutionary adaptation.

首先，至少在大西洋和太平洋鱼类种群中观察到的一些酶的差异不是随机的，而是进化适应的结果。

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While previously the gap between the continents had allowed a free flow of water, now the isthmus presented a barrier that divided the Atlantic Ocean from the Pacific Ocean.

以前，大陆之间的鸿沟允许水自由流动；而现在地峡形成了一道屏障，把大西洋和太平洋分隔开来。

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For many years, people had dreamed of building a canal across Central America to link the Atlantic and Pacific Oceans.

VOA: special.2010.08.19

It also needed a canal across Central America so the Navy could sail quickly between the Atlantic and Pacific oceans.

VOA: special.2010.08.12

Jefferson had a wish. He wanted to discover a waterway that crossed from the Atlantic Ocean to the Pacific.

VOA: special.2010.01.11

Canada claims the passage, which links the Pacific and Atlantic Oceans, runs through its internal waterways.

CNN: China eyes Arctic options in energy, transport

These buoys are placed at intervals along specific lines of longitude throughout the Pacific and Atlantic Oceans.

CNN: La Nina spawns extreme weather

For a variety of reasons, including formerly unrestrained whale hunting, now there are three separate, reproductively isolated groups in the Pacific, Atlantic and Southern oceans.

CNN: waves