Scientists at the University of California, Santa Barbara have been studying their jaws, which are made up of 10% copper proteins and are so strong that they last the worm's entire five-year lifespan.

加州大学圣巴巴拉分校的科学家们一直在研究它们的下颚，它们的下颚由 10% 的铜蛋白质组成，非常坚固，可以维持这种蠕虫整整五年的寿命。