In this chapter, I discuss the corruption-of-nature (CON) hypothesis, which argues that animal suffering and death are the result of the corrupting work of Satan and other principalities and powers. I will first argue that animal suffering truly is evil because of God’s great care for animals. I will then address the problem posed by the amount of animal suffering that occurs in our world. I will then introduce the corruption-of-nature hypothesis and discuss the biblical and historical evidence for it, and I will follow this by addressing the most significant objection to my thesis. I will conclude by exploring several implications the corruption of nature hypothesis has for our understanding of animal suffering.