普莱斯表示，以蓝鲸为例，这个重达160公吨的大块头进化出了一张巨大的嘴，每天能吞下成千上万只小磷虾。

For example, Price said, the 160-metric ton blue whale evolved a huge mouth –allowing it to eat millions of tiny krill each day.

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尽管潜在的意义十分重大，斯普里格的这个发现却在一个国际会议上受到冷落，他描述这些化石的论文也被权威期刊退稿。

But despite their potential importance, Sprigg's discoveries were ignored at an international geology meeting and his paper describing the fossils was rejected by the leading journal,.

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研究者埃玛·格雷格和史蒂芬·普鲁厄特·琼斯说，鹩莺的鸣叫是对伯劳鸟叫声的回应，所以它们几乎是在唱二重唱。

The researchers, Emma Greig and Stephen Pruett-Jones, say that the wren's song responds to the butcherbird's song, so that the two are almost singing a duet.

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