When not in use, the fins are tucked into special grooves or depressions so that they lie flush with the body and do not break up its smooth contours.

当鱼不使用鱼鳍时，会将它们折叠起来，收回到特殊的沟槽或者凹陷部位；这样鱼鳍就可以与身体保持齐平，以维持它们平滑的外形。

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They are intelligent, communicate with each other, have the ability to learn, do tricks, play jokes, and can almost use their fins as hands.

它们非常智慧，相互之间能够联系，有学习的能力，会戏法，能开玩笑，还可以几乎用他们的鳍当做手掌！

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Destruction doesn't only come from the sea, either. Other super accurate systems, like certain Guided Bomb Units (GBU) carried on F15E Strike Eagle planes, use lasers and fins for guidance.

当然不仅海上可以发射这些导弹，其他的超级精确制导系统，比如某些悬挂在F15E战鹰攻击机上的制导导弹（GBU），通过激光和尾翼制导。

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