研究小组分析了化石湖石头里的有机物。
The team analysed the organic compounds in the rocks 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。
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.
麦赛尔遗址所出土的大量保存极好的化石给我们提供了一个线索，火山湖正是罪魁祸首。
The huge range of magnificently preserved fossils at Messel suggest that the volcanic lake was a death trap.
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