Mantis shrimp commonly occupy burrows in shallow, tropical waters. These habitats are often structurally complex where many potential landmarks are available. Mantis shrimp of the species Neogonodactylus oerstedii return to their burrows between foraging excursions using path integration, a vector-based navigational strategy that is prone to accumulated error. Here, we show that N. oerstedii can navigate using landmarks in parallel with their path integration system, correcting for positional uncertainty generated when navigating using solely path integration. We also report that when the path integration and landmark navigation systems are placed in conflict, N. oerstedii will orientate using either system or even switch systems enroute. How they make the decision to trust one navigational system over another is unclear. These findings add to our understanding of the refined navigational toolkit N. oerstedii relies upon to efficiently navigate back to its burrow, complementing its robust, yet error prone, path integration system with landmark guidance.

中文翻译：

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螳螂虾的地标导航

螳螂虾通常栖息在热带浅水区的洞穴中。这些栖息地通常结构复杂，有许多潜在的地标可用。Neogonodactylus oerstedii 的螳螂虾在觅食旅行之间使用路径整合返回洞穴，这是一种基于矢量的导航策略，容易累积错误。在这里，我们展示了 N. oerstedii 可以使用与其路径集成系统并行的地标进行导航，纠正仅使用路径集成导航时产生的位置不确定性。我们还报告说，当路径整合和地标导航系统发生冲突时，N. oerstedii 将使用任一系统或什至在途中切换系统进行定位。他们如何决定信任一个导航系统而不是另一个还不清楚。