How do we know...
...that the bees have not simply become 'familiarised' with the image of the correct image (since that's the image they are trained with) and so naturally gravitate (or fly, in their case) towards that one when given a choice, because it is the image with which they are familiar? It certainly shows they have short term memory, but do they have the ability to add and subtract? I'm not (yet) convinced.
Biting the hand that feeds IT
