The team analysed the organic compounds in the rocks of Fossil Lake.

研究小组分析了化石湖石头里的有机物。

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Toxic blooms also occur, albeit on a smaller scale, in bodies of freshwater—and that, Ms Hellawell thinks, is the answer to the mysterious case of Fossil Lake.

虽然规模较小，但在淡水水体毒藻疯长也会发生——因此，赫拉维尔女士认为这就是化石湖神秘事件的答案。

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At older lake sites, there's fossil remains from hippopotamuses, water buffalo, animals that spend much of their lives standing in water, and also, fossils of cattle.

在较老的湖泊遗址，有河马、水牛的化石遗迹，这些动物一生中大部分时间都站在水里，还有牛的化石。

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The team analysed the organic compounds in the rocks of Fossil Lake.

ECONOMIST: What killed Fossil Lake?

Toxic blooms also occur, albeit on a smaller scale, in bodies of freshwater and that, Ms Hellawell thinks, is the answer to the mysterious case of Fossil Lake.

ECONOMIST: What killed Fossil Lake?

The techniques needed to extract fossil and climatic evidence from this lake bed, and to search for life forms that have adapted to survive in such hostile conditions, would also work on Mars so it is an ideal location to test robots and even to train would-be astronauts.

ECONOMIST: Planetary pretenders