 Cabanac and colleagues have documented the presence of some of these phenomena in amniotes, in contrast with their absence in at least a small number of non-amniote species, such as emotional fever (Cabanac and Bernieri 2000; Cabanac and Cabanac 2000; Cabanac and Cabanac 2004) and taste aversion (Paradis and Cabanac 2004). 