“…Nonetheless, young children tend to spontaneously focus on highly salient surface features. Specifically, while older children and adults often group objects according to complex cues such as common internal properties, labels, and causal affordances, regardless of perceptual similarity (Carey, 1985;Keil, 1989;Medin, 1989;Rips, 1989), young children tend to group objects based on perceptual similarity, and only later shift to favoring other properties (e.g., Gelman & Davidson, 2013;Gentner, 2010;Keil & Batterman, 1984).…”