A honey bee colony has no central nervous system, yet it behaves like a single coordinated organism. That coordination runs almost entirely on chemistry: exocrine glands release blends of volatile compounds that other bees detect with their antennae and translate directly into behaviour, no learning required.
Honey bees carry around 15 known exocrine glands and can detect pheromone concentrations in the low parts-per-billion range with roughly 170 odorant receptor genes — several times more than most other insects.
A cutaway 3D hive where four real bee pheromones — queen mandibular, brood, alarm and Nasonov — spread as glowing scent plumes and visibly steer the movement of hundreds of worker bees.
Each pheromone diffuses at a different rate and produces a different colony response: queen and brood signals attract nearby workers, alarm pheromone triggers rapid fleeing and agitation, and Nasonov scent recruits distant foragers home through the entrance.
Pick a signal type, then raise the emission strength and airflow/fanning rate to watch the scent plume grow and workers react faster. Adjust the worker population to see the effect at colony scale.
Honey bees have around 170 odorant receptor genes and detect some pheromones in the parts-per-billion range — far more sensitive than most other insects.