Grainger, Dufau, Montant, Ziegler, and Fagot (2012a) taught six baboons to discriminate words from nonwords in an analogue of the lexical decision task. The baboons endorsed novel words more readily than novel nonwords, and had trouble rejecting nonwords that were orthographically similar to learned words. In a subsequent test (Ziegler, Hannagan, et al., 2013), the same animals demonstrated the...