While the problem of evil remains a perennial challenge to theistic belief, little attention has been paid to the special problem of animal pain and suffering. This absence is especially conspicuous in our Darwinian era when theists are forced to confront the fact that animal pain and suffering has gone on for at least tens of millions of years, through billions of animal generations. Evil of this sort might not be especially problematic if the standard of explanations for evilemployed by theists could be applied in this instance as well. But there is the central problem: all or most of the ex