The research pointed to warm-bloodedness being an ancestral trait that emerged early in dinosaur evolution.

该研究指出，温血作为一种祖先特征，出现在恐龙进化的早期。

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The real interest is the early date, showing that we still know very little about the earliest stages of dinosaur and pterosaur evolution.

真正令人感兴趣的是早期的数据，这表明我们对恐龙和翼龙进化的早期阶段仍然知之甚少。

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The tail bones indicated that the specimen belonged to a dinosaur that was not a prehistoric bird and also provided researchers with insight into the evolution of feathers.

尾骨显示该标本来自一只恐龙，而非史前鸟类，还让研究者得以更加深入地了解羽毛的演化。

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The tail bones indicated that the specimen belonged to a dinosaur that was not a prehistoric bird and also provided researchers with insight into the evolution of feathers.

尾骨显示该标本来自一只恐龙，而非史前鸟类，还让研究者得以更加深入地了解羽毛的演化。

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