The common dog whelk is a formidable predator, even though it doesn't look dangerous. The snail uses its tongue to grate a hole in the house of another animal, for example, bivalves or other sea snails. Then it injects a fluid, just like a spider, which dissolves the prey. He then 'drinks' up the juicy victim. Such a meal costs a lot of preparation and can take between 6 to 10 hours. This snail almost disappeared from the use of tin-bearing paints (TBT) on ship hulls.
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