Fig. 2. The mean (±s.e.m.) time to explore for snails placed in PW after a 2
h exposure to PW, CE or BC. Time to explore in the CE treatment was
17.34±2.01 s compared with 9.23±1.476 s in PW and
11.33±3.018 s in BC treatment (N=54,
**P<0.01, one-way ANOVA).