Such burrowing discourages barnacles from clinging to their shells.
这种挖洞的方式阻碍了藤壶粘附在壳上。
2
In the Middle Ages, it was thought to hatch from barnacles, and thus was considered "fish" and could be eaten on Fridays.
在中世纪，人们以为本种可来自藤壶，因此视之为“鱼”，并可在星期五吃。
3
When fully grown, however, the crabs can readily withstand tidal currents without burrowing, and thus they acquire substantial populations of barnacles.