Scientists report that bumblebees show distinct behavioral reactions depending on whether they taste something sweet or bitter. According to the accounts, when researchers offer bumblebees a sweet treat, the insects extend their tongues and appear to “lick their lips,” a behavior interpreted as a positive response to sweetness. When the bees are given bitter drinks instead, they do not display the same tongue-licking behavior. Instead, they shake their heads in a way described as disgust or rejection. The reports describe this difference as a clear shift in how the bees behave after tasting different flavors. While both sources focus on the same set of observations—tongue extension and “licking” for sweet tastes, and head shaking for bitter tastes—they do not provide additional experimental details in the text provided. The findings are presented as evidence that bumblebees can distinguish taste qualities and react in measurable ways to different types of gustatory stimuli.