A shrimp’s shell doesn’t stretch. So to grow, it can’t just get bigger — it has to climb out of its armour completely.
It absorbs water until the old shell splits, backs out of it, and leaves behind a perfect hollow copy of itself (often mistaken for a dead shrimp). The catch: what emerges is soft and defenceless for a day or more, until the new shell hardens.
And a cold-water shrimp, growing slowly over years, does this again and again — every millimetre of that firm, dense body earned in a moment of total vulnerability.
