Studies of Metroid biology continue, though with limited progress. It seems likely that we will be much more successful using the Metroids for our means rather than trying to reproduce their powers. If they could be adequately tamed, we would have no need of a proper understanding of their metabolism. A small force of disciplined Metroids could wipe out entire armies, and once we find a way to shield them from cold-containment weapons, they will be invincible. Furthermore, if we could then harvest the energy they'd consumed, we would have a near-limitless source of power at our disposal.