最大的恐龙–第1级
06-07-2023 15:00
这里有来自阿根廷的消息。科学家们发现了一些化石。这些骨头非常古老。它们是恐龙的骨头。这些骨头大约有9000万年的历史。
这些骨头对科学家很重要。这些骨头非常大。它们的数量也很多。专家们还发现了一些牙齿。这些牙齿可以告诉他们这个动物吃了什么。
你可以在第三级栏目中观看原始视频。
化石的年龄约为9000万年，其意义何在？
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