By James Gorman
It is hard enough to figure out emotions in humans — but insects?
Nonetheless, as far back as Darwin, scientists have suggested that insects have something like emotional states, and researchers continue, despite the difficulties, to try to pin those states down.
The latest contribution suggests that a sweet treat can change the way bumble bees make decisions, producing something akin — although perhaps distantly related — to optimism.
Continue reading by clicking the name of the source below.