"You could say that its body has a replacement capability," adds Kuo. Heavy metals which have passed through the worm can be more easily sucked out of the clay by plants. Its body structure can collect heavy metals in the loops below the skin of its intestines, up to twenty times the average amount that is in the soil.
「可以說它的身體有交換能力」，郭登志解釋，經過它消化的重金屬，更容易被植物吸收；此外，它的身體構造，在腸道皮下能聚集重金屬到土壤含量的廿倍。