鱼用鳍来平衡和驱动身体。
就是模仿这一点，Gymnobot用较低的，刀子一样的“鳍”在水中推动自己，而身体同样保持僵硬状态。
In the same way, Gymnobot USES its lower, bladelike "fin" to propel itself through the water while the body remains rigid.
这种奇特的鱼用像手一样的鳍片在水底走路，而不是游泳！ 这可是今年5月在澳大利亚的海岸最新鉴定出这样的新物种。
Nine fish that use handlike fins to walk, rather than swim, off Australia were identified as new species in May.
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