‘Shell-crushing’—exactly what it sounds like—is a predatory mode used by numerous marine life from crabs to octopuses to large fishes and mammals when they eat hard-shelled mollusks like clams, oysters and conchs. These predators have to break apart the shell using robust claws or fortified jaws to access the prey’s soft tissues.
Click here for original story, Crunch! Underwater acoustics expose ‘shell-crushing’ sounds in a large marine predator
Source: Phys.org