And Palau's Jellyfish Lake, a 12-acre sea landlocked from the ocean some 15, 000 years ago and now home to millions of golden jellies, is the perfect laboratory for testing that theory.

在帕劳有一个15000年前从海洋分离出来由陆地阻隔的12英亩的水母湖，这里现在是数百万黄金水母的栖身之地，这是检验这一理论的完美实验室。

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There are groups of jellyfish in the lake, but they do not stab people. Divers can swim with jellyfish, or pick them up without worrying about injuries.

湖中水母成群，但它们不会刺人，潜水者可以与水母一同畅游，或者捧起它们观赏，完全不必担心会受伤。

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The Koror state government is dramatically hiking the price of visitor permits for the Rock Islands and Jellyfish Lake.

BBC: The price of protecting paradise in Palau