Seahorses are among the only animal species on Earth in which the male bears the unborn young, a unique trait in these fish that inhabit tropical and temperate coastal waters worldwide.

海马栖息在世界各地的热带和温带沿海水域，这些鱼类有个独特的功能，是地球上唯一由雄性孕育未出生幼仔的动物。

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The fish in the water is silent, the animal on the earth is noisy, the bird in the air is singing.

水里的游鱼是沉默的，陆地上的兽类是喧闹的，空中的飞鸟是歌唱着的。

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Many fish and sea animals live in the streams, rivers, lakes, seas and oceans on the Earth.

很多鱼类以及海洋动物生活在小溪、河流、湖泊、海洋之中。

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In addition, it is further evidence that the great fish can navigate, possibly using the Earth's magnetic field.

BBC: Sharks navigate using 'mental maps'

The first Rio Earth Summit in 1992 called for nations to find ways to conserve fish stocks and prevent international conflicts over fishing on the high seas.

BBC: Shortages: Fish on the slide