this may in turn lead them to seek out higher-order relations among that category and others (e.g., mammals). This discovery of higher-order relations has been proposed to provide the foundation for analogical mapping during early childhood, which involves the ability to recognize a common relational system between two situations and to generate additional inferences based on these commonalities (Gentner, 1983, Gentner and Markman, 1997 and Holyoak and Thagard, 1989). Thus, we speculate that that second-order correlation learning in infancy signifies the origins and foundation of analogical reasoning in early childhood.