9.Every week the US Department of Agriculture (USDA) and Panamanian government drop sterilised screwworms, a parasitic flesh-eating fly larva that feeds on livestock, out of a plane on the Panama-Colombia border in order to stop the creatures from breeding.
每周,美国农业部和巴拿马政府都会在巴拿马和哥伦比亚边境
飞机投放绝育的螺旋虫(一种苍蝇幼虫,寄生且吃牲畜的活体组织),以阻止
种生物的繁殖。