“…Although animal categorization has not enjoyed the extensive theoretical development witnessed in human categorization (Shimp, Long, & Fremouw, 1996), some recent research has taken advantage of the advanced state of theory in the human literature by focusing on examining animals' categorization under conditions previously examined in humans (Fagot, Kruschke, Dépy, & Vauclair, 1998;Herbranson, Fremouw, & Shimp, 1999;Medin & Dewey, 1984;Sigala, Gabbiani, & Logothetis, 2002;Smith, Minda, & Washburn, 2004). In several cases, this work has been complemented by application of well-developed quantitative theories of human categorization to the behavior of animals (Fagot et al, 1998;Herbranson et al, 1999;.…”