• 奥陶纪大多数生命生活海洋所以海洋生物例如三叶虫腕足类动物笔石动物数量此时急剧减少

    During the Ordovician, most life was in the sea, so it was sea creatures such as trilobites, brachiopods and graptolites that were drastically reduced in number.

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  • 海豚动物他们生活海洋。他们一样热血,像人一样地呼吸空气和给孩子喂奶。

    Dolphins are animals. They live in the sea. They have warm blood, breathe air and feed their babies with milk, just like humans.

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  • 珊瑚石:珊瑚石,珊瑚生活海洋体态玲珑色彩高雅腔肠动物名曰珊瑚虫。

    Coral rock: coral rock, coral is a kind of life in the sea posture is exquisite, colour elegant coelenterate, called polyps.

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  • 有些我们熟悉发现最多动物化石,菊石等当时都生活海洋

    Some of the most familiar and plentiful fossils, such as the ammonites, lived in the seas at that time.

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  • 跟踪这些生命周期长的海洋爬行动物不可能因为它们漂洋过海数千绝大多数时间生活在水下

    These long-lived Marine reptiles are impossible track as they drift through thousands of kilometres of ocean, spending the vast majority of their time underwater.

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  • 跟踪这些生命周期长的海洋爬行动物不可能因为它们漂洋过海数千绝大多数时间生活在水下

    These long-lived Marine reptiles are impossible track as they drift through thousands of kilometres of ocean, spending the vast majority of their time underwater.

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