This talk will explore three case-studies of moral psychology: (1) Physical contact, such as helping, hindering, and hitting; (2) Fair and unfair distribution of resources; and (3) Violations of purity, with special focus on sexual behavior. I will review some ongoing experimental work with babies and young children that bears on the emergence of moral intuitions and motivations in these domains, and I will argue that these domains show strikingly different patterns of development. I end with an argument that developmental moral psychology is relevant to problems of normative ethics, though in a rather indirect way.