Results of Experiment 3: Possible mechanisms accounting for the aversive nature of quinine solution.

<p>(A) Standard curve relating drinking duration (s) and volume of 1 M sucrose solution imbibed (µL). These variables were linearly correlated (p&lt;0.001). The arrows in inset show the means of water (W) and quinine (Q) drinking duration (***: p&lt;0.001). (B) Percentage of droplets (1 µL in black or 2 µL in white) of sucrose, quinine or water totally imbibed by bees when presented together on a plate. These data show that in a foraging context, free-flying honeybees don't imbibe quinine but do imbibe water (*: p&lt;0.05).