Enemy Number One... Oyster Drill
Oyster drills are destructive little snails that prey directly on small shellfish. Oyster drills attack their prey by making a small hole through the shell, using a drill-like organ called the radula. The radula is aided by the secretion of sulfuric acid to carve away the shell and make the hole. Once the hole is made, the animal will digest the soft meat of the prey.