Pearls are the result of a biological process which is the oyster’s way of protecting itself from the foreign substances of the self-indulgent human.
Pea crabs find their oyster hosts very early on when both are still larvae. Though their relationship is defined as a parasitic one, the oyster and the pea crab have more of a commensal symbiotic relationship, whereby the oyster filters in nutriment and the pea crab purifies the shell.
When the shell is broken to remove the pearl, the symbiotic relationship between the pea crab and oyster is demolished; killing the oyster and leaving the tiny crustacean homeless. The sound production for this work provides a human-centric reference for mutually dependent relationship between the oyster and the pea crab.