The male fur seal is much larger than the female.

雄性海狗的体型比雌性海狗大许多.

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Some animals can live in water, such as seals dogs, dolphins, whales and fishes.

一些动物生活在水里, 比如海狗 、 海豚 、 鲸鱼和其他一些鱼.

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The smallest foot fin is the suborder of animals fur seal Galapagos Islands.

最小的鳍脚亚目动物是加拉帕戈斯群岛海狗.

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Penguins also have natural enemies, including wild dogs, sharks, seals and sea lions.

企鹅同样有敌人, 包括海狗, 鲨鱼, 海豹和海狮.

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