Coffee trees produce caffeine as a natural defense against garden slugs. It is poisonous to them.
Honeybees get low doses of caffeine when collecting nectar from coffee tree flowers. It is not poisonous to bees.
Honeybee long-term memory is improved by caffeine according to a recently published study by neuroscientist Geraldine Wright.
Honeybees enjoy caffeine and tend to return to caffeinated flowers more frequently. This makes them more productive.
Honeybees do a special figure-eight dance when returning to their hive after locating a caffeinated plant. It signals to the others the direction and distance of the plant.