What characteristic primarily distinguishes a drone's eyes from those of worker bees?

Drones are primarily distinguished from worker bees by the size and structure of their eyes. Drones possess larger compound eyes compared to worker bees. This adaptation is crucial for their role within the colony, as drones are typically involved in mating flights. The larger eyes allow them to have a wider field of vision, which aids in locating and tracking potential mates during their reproductive flights.

In contrast, worker bees have smaller compound eyes that are well-suited to their variety of tasks within the hive and foraging outside. They rely more on their ability to recognize patterns and color contrasts that facilitate efficient foraging and navigation.

This difference in eye size and structure reflects the differing roles of drones and workers in the colony's ecosystem. While worker bees have evolved features that enhance their capability in communication, pollen collection, and hive maintenance, drones have their vision optimally adjusted for mating purposes.