The evolution of Müllerian mimicry in multi-species communities Beatty, Beirinckx & Sherratt 6 0 5 0 4 0 3 0 Meantolscre 2 0 1 0 S y s t e m w i t h : p l a i n f o c a l p r e y s t r i p e d f o c a l p r e y 0 s p o t t e d f o c a l p r e y 1 0 2 3 4 E x p e r i m e n t Supplementary Figure 3 The mean total scores (± 1 s.e.) that predators achieved in each of the three systems (prey communities with plain, striped or spotted focal prey) for experiments 2-4. The scores of our human foragers varied significantly between experiments 2-4, but did not vary significantly with the form of focal unprofitable prey presented (2-way ANOVA: experiment F2,81 = 382.13, P < 0.001; focal prey type F2,81 = 3.10, P > 0.05; interaction F4,81 = 1.04, P > 0.05). The low scores in experiment 4 reflect the difficulty that subjects faced when foraging in an environment with no simple discriminative cues to guide them. The mean scores (± 1 s.e.) in experiments 5a and 5b were 41.02 ± 2.22 and 40.10 ± 3.45 respectively.