The rocky outcrops of New zealand's Poor Knights Islands are riddled with sea caves.

新西兰坡·骑士岛的岩礁下布满了海蚀洞。

Unfortunately due to their voracious appetite they have become a pest in some areas, including new zealand, where they're considered a dangerous invasive species, partly due to the lack of predators.

不幸的是，由于它们贪婪的胃口，它们在一些地区已成为害虫，包括新西兰，它们被认为是危险的入侵物种，部分原因是缺乏捕食者。