The design is a nod to freshwater knifefish, which can move forward and backward, and hover, by rippling an elongated ventral fin.

Gymnobot的设计灵感来自于一种名为宝刀鱼(knifefish)的淡水鱼，这种鱼利用腹部长长的鱼鳍，在水中可以进退自如，还可以作出水中盘旋等动作。

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If it looks like a fish and swims like a fish, it could be a robot — such as the University of Bath's Gymnobot (pictured), inspired by an Amazonian knifefish.

有这样一个机器人，它的样子和游泳动作都很像一条鱼——这就是巴斯大学的Gymnobot。它的样子是模仿亚马逊流域的一种刀鱼。

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To allow more room for cameras and other electronics, Megill's team took cues from the knifefish, which keeps its body rigid to sense electric currents in the water.

为了能有空间装入相机和其他电子设备，梅吉尔的团队开始关注刀鱼，这种鱼可以让身体保持僵硬，来感知水中的电流。

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