Human reasoning depends crucially on our ability to attend to relevant information when making generalizations. This becomes most challenging when the relevant information is not immediately obvious. For example, within the natural world, subtle cues are sometimes better predictors of behav- ior than overall appearance (e.g., Canadian goslings can be distinguished from mallard ducklings only by subtle differences in their bills and feet, even though the two species have different diets and migration habits and grow up to look highly dissimilar). Two broad accounts have been proposed to explain the development of category induction and analogical reasoning in young children