这种防御机制已经为人所熟识了，而且在其他一些无脊椎动物中也有发现。 但是目前还没有报道说明是什么使得它们形成这样的机制，也不知道这是否可以有效地反抗捕食者。

This is a recognised defence mechanism and has been mentioned in other invertebrates, but no one had published on what exactly makes them do it or whether it actually is effective against predators.

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与其说从现世的教会中还不如说从他们身上，人们寻找道德上的指导、情感上的保证以及偶尔有效的反抗途径。

From them, more than from the secular Church, men sought moral guidance, emotional reassurance, and, on occasion, effective protest.

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