然而，与海豚利用海绵捕捉藏在泥中鱼类的海绵捕食法不用，海螺捕食法在鲨鱼湾分布并不广泛。

Unlike sponging, however, in which dolphins use sponges to find fishes hiding in mud, conching isn't yet widespread in Shark Bay.

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渔业与环境：一个新发明可以降低拖网捕鱼法对珊瑚、海绵、海藻和其他海底生物的危害。

Fishing and the environment: a new invention makes trawling for fish much less harmful to coral, sponges, seaweed and other denizens of the seabed.

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同样不清楚的是海螺捕食法是如何出现的：或许是海绵捕食法的一个变化，又或者是有一种智慧可以与我们自己匹敌，可是缺少手指和手的生物，灵光一闪而出现的。

Also unknown is how conching emerged: as a variation on sponging, perhaps, or in flashes of insight from creatures whose intelligence may rival our own but happen to lack fingers and hands.

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