Acoustic monitoring is increasingly used to observe wildlife that might otherwise remain elusive, such as marine mammals. It is also useful on land and in the air, however, enabling researchers to study a range of questions from evolution through to ecology. Michael Gross reports.

中文翻译：

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窃听生态系统

越来越多地使用声波监测来观察可能难以捉摸的野生生物，例如海洋哺乳动物。但是，它在陆地和空中也很有用，使研究人员能够研究从进化到生态学的一系列问题。迈克尔·格罗斯（Michael Gross）报告。