他们有如此多的共同点，这看起来不太可能只是巧合。
They had so much in common, it seemed unlikely these were just coincidences.
根据《自然地球科学》杂志里面的一篇文章，这看起来事实确实如此。
That seems to very much be the case, according to a paper published in Nature Geoscience.
但是一项新的研究提出了这样一种可能性：虽然生物化石的颌骨和牙齿看起来似乎是按照事先设计好的方式发挥功能，但是这并不代表他们实际如此。
Yet a new study suggests that even if the jaws and teeth of fossilised creatures look as if they are built to function in a given way, it does not mean that they actually did so.
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