When evolutionary explanation is transferred from its normal habitat of biology to the realm of human social, cultural, and moral concerns, a problem is often neglected. After examining arguments for and against Social Darwinism, this paper identifies this problem and proceeds by exploring the possibility of a middle-ground position according to which Social Darwinism would be enough for explaining some aspects of moral and social behaviour but not enough for explaining all aspects. The investigation indicates that this middle-ground position is (...) not viable because intentional content burdens evolutionary ethics with fundamental problems, problems that need to be resolved before any further progress is attainable. (shrink)