Fig. 1.

The visual pattern artificial flowers used in our experiments. a The control artificial flowers that present no visual pattern. b The visual pattern artificial flowers used in learning experiments. c The visual pattern artificial flowers used in both test phases. d The temperature pattern flowers—note that there is no visual differentiation between the two types presented. e Thermographs of the two flowers shown in d—the left flower shows a ‘circle’ pattern, and the right shows a ‘bar’ pattern.

d Copyright and reproduced from Harrap et al. (2017) under a Creative Commons Attribution license