The dolphins eat the fish that have PCBs from the plankton, and those PCBs, being fat-soluble, accumulate in these dolphins. Now, a dolphin, mother dolphin, any dolphin — there's only one way that a PCB can get out of a dolphin. And what's that?
Los delfines comen los peces que tienen PCB del plancton, y esos PCBs, siendo grasas solubles, se acumulan en esos delfines, Ahora, un delfin, mama delfin, cualquier delfin - existe solo una manera de que el PCB salga del delfin y cual es?