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The senses bees have and we do not

Electric fields around flowers, the polarisation pattern of the sky, vibration through the comb, humidity, and a magnetic response whose mechanism is still argued. Four of those are settled. One is a good example of an effect outrunning its explanation.

Bee biologyReviewed 2026-10-31

Electric fields

A flower connected to the ground carries a small negative charge. A bee in flight picks up a positive charge from friction with the air. The difference produces a weak electric field around the flower, and its shape changes for a while after a visit, because the departing bee leaves the flower slightly less negative.

Bumblebees learn to associate field patterns with reward, and discriminate flowers by field alone when colour and scent are held constant. The receptor appears to be mechanical: fine body hairs are deflected by the field, and the deflection is transduced by the same kind of mechanoreceptor that detects touch and air movement. An effect that sounded exotic acquired a plausible mechanism within three years, which is unusually quick.

Polarised skylight

The dorsal rim of each compound eye contains receptors arranged to detect the polarisation of scattered sunlight. Because that pattern radiates around the sun's position, a bee that can see a patch of blue sky can infer where the sun is even when the sun itself is hidden. It is the basis of the sun compass, and it is what allows the waggle dance to encode a solar bearing on an overcast day.

Vibration, air movement and sound

Bees have no ears in the usual sense. Johnston's organ, in the second antennal segment, detects the movement of air particles and vibration transmitted through a surface. That is how a follower reads a waggle dance in a completely dark hive: she is detecting the dancer's vibrations through the comb and the air jets from her wings, not listening to a sound.

The same channel carries the stop signal, the shaking signal and queen piping, all of which are vibratory messages delivered by contact or through the comb. A bee colony is, in acoustic terms, a network in a solid rather than in air.

Humidity, temperature and carbon dioxide

  • Antennal hygroreceptors detect humidity, and the brood nest is held within a narrow band because egg survival depends on it.
  • Thermoreceptors detect temperature, and the brood nest is held close to thirty-five degrees Celsius — the tightest thermal regulation of any insect nest.
  • Carbon dioxide sensitivity triggers fanning, so an individual threshold produces a collective ventilation system with no one coordinating it.
  • A circadian clock supports time-of-day memory: bees learn when a flower species secretes nectar and turn up then.

Magnetism, and the honest state of it

Bees change their behaviour in altered magnetic fields. Comb-building orientation, homing and trained discrimination tasks have all shown effects, reported repeatedly since the 1970s. Magnetite-containing structures have been described in the abdomen and proposed as the receptor.

Every sense at a glance

The table separates two questions that are often merged: what bees are shown to do with a cue, and how well the mechanism behind it is known. The electric sense has a likely mechanism — body hairs bent by the field — but it has been shown in bumblebees, not honey bees. The magnetic sense is the reverse: honey bees respond to magnetic cues, and a 2017 experiment linked that response to magnetite-like material in the abdomen, but the receptor itself has not been found.

How a bee senses the world: what it does with each sense, and how well the mechanism is known
SenseOrganWhat bees are shown to doHow it worksMechanismSpecies
ColourCompound eyes, with three types of photoreceptor (ultraviolet, blue and green)Bees learn flower colours for reward and use ultraviolet patterns invisible to us. Red is not invisible, but it is poorly distinguished from black or dark green unless it reflects ultraviolet.Trichromatic vision built on three photoreceptor classes, shifted towards ultraviolet relative to human vision.Mechanism establishedApis mellifera
Polarised lightA strip of specialised facets on the upper edge of each compound eyeBees keep their compass bearing from a patch of blue sky when the sun itself is hidden.Photoreceptors in the upper rim of the eye that respond to the plane of polarisation.Mechanism establishedApis mellifera
Motion and distanceCompound eyesBees flown through patterned tunnels misreport distance in their dances in proportion to the image motion they experienced.An odometer that integrates optic flow rather than energy spent; the neural circuit is not fully mapped.Mechanism supported by experimentApis mellifera
SmellOlfactory sensilla on the antennaeBees learn floral scents quickly, recognise nestmates by colony odour and respond to pheromones from queen, brood and workers.A large repertoire of odorant receptor genes, many times larger than the taste repertoire.Mechanism establishedApis mellifera
TasteContact sensilla on the mouthparts, antennae and the tips of the forelegsA bee extends its proboscis when sugar touches its antennae or feet; responses to sugar change with age, hunger and job.A strikingly small set of gustatory receptor genes compared with other insects studied. How that set covers bitter compounds is less clear, and bee taste does not map onto human taste categories.Mechanism supported by experimentApis mellifera
Vibration and air movementJohnston's organ at the base of each antenna; vibration receptors in the legsFollowers of a waggle dance pick up the dancer's air-borne sound and vibration; workers respond to signals carried through the comb.Mechanoreceptors detect antennal deflection and substrate vibration; which signal features carry which information is still studied.Mechanism supported by experimentApis mellifera
Electric fieldsMechanosensory body hairs deflected by the fieldBumblebees learn to tell flowers apart by electric field pattern alone when other cues are held constant.Hairs bend in the field and the bending is sensed mechanically, shown in bumblebees. Whether honey bees use floral fields in the same way has not been shown in the sources read, and there is no evidence that bees navigate by electricity.Mechanism supported by experimentBombus terrestris
Magnetic fieldNot identified; magnetite-like material has been found in the abdomenHoney bees have been trained to respond to magnetic cues in choice tasks, and a strong magnet changed both the abdominal material's magnetisation and the bees' performance.A magnetite-based receptor in the abdomen is proposed and supported by that experiment; the receptor cell itself has not been found, and what the sense contributes to navigation is unresolved.Mechanism proposedApis mellifera
Temperature, humidity and carbon dioxideSensilla on the antennaeWorkers heat, fan, fetch water and cluster in response to nest conditions, holding the brood nest within a narrow band.Antennal sensilla responsive to temperature, humidity and carbon dioxide; how individual responses add up to colony regulation is a colony-level question.Mechanism supported by experimentApis mellifera

Behaviour and mechanism are separate columns because they are separate claims: bees can respond reliably to a cue whose receptor has not been found.

Checked 2026-10-31 against: The Mind of a Bee (Princeton University Press, 2022); The Dance Language and Orientation of Bees (Harvard University Press, 1967); The Biology of the Honey Bee (Harvard University Press, 1987); Honeybee navigation: nature and calibration of the 'odometer' (Science, 2000); The chemoreceptor superfamily in the honey bee, Apis mellifera: expansion of the odorant, but not gustatory, receptor family (Genome Research, 2006); The honeybee as a model for understanding the basis of cognition (Nature Reviews Neuroscience, 2012); Detection and learning of floral electric fields by bumblebees (Science, 2013); Mechanosensory hairs in bumblebees (Bombus terrestris) detect weak electric fields (Proceedings of the National Academy of Sciences, 2016); Linking magnetite in the abdomen of honey bees to a magnetoreceptive function (Proceedings of the Royal Society B 284:20162873 (Lambinet and colleagues), 2017); Honeybee colony thermoregulation – regulatory mechanisms and contribution of individuals in dependence on age, location and thermal stress (PLoS ONE, 2010).

The claims on this page

Every substantive claim is placed on a tier, and the top two tiers must also state what they are not claiming.

Emerging research

Real studies exist and point somewhere, but they are small, in vitro, in animals, or not yet replicated. Direction is not the same as a result.

Emerging research

Bumblebees detect the weak electric fields around flowers and can learn to use them as a cue.

Demonstrated behaviourally with colour and scent held constant, with a subsequent identification of body hairs deflected by the field as the likely receptor.

What this does not claim: It does not establish that field information is used routinely in the wild, nor that the same sensitivity is present across all bee species. It also does not establish the proposed function of signalling recent visits, which remains a hypothesis.

  • Detection and learning of floral electric fields by bumblebees — Science (2013) · Peer-reviewed article
  • Mechanosensory hairs in bumblebees (Bombus terrestris) detect weak electric fields — Proceedings of the National Academy of Sciences (2016) · Peer-reviewed article
Emerging research

Honey bees have a magnetic compass sense.

Behavioural responses to magnetic field manipulation are reported across several decades and several laboratories, and magnetite-bearing structures have been described. The receptor and transduction pathway are not established, and some results have been hard to replicate.

What this does not claim: The demonstrated response to a field change is not the same as a compass used in navigation, and no mechanism is asserted here. HoneyHQ reports an effect with an unsettled explanation rather than a sense with a known organ.

  • The Mind of a Bee — Princeton University Press (2022) · Monograph

Sources

  • Linking magnetite in the abdomen of honey bees to a magnetoreceptive function — Proceedings of the Royal Society B 284:20162873 (Lambinet and colleagues) (2017) · Peer-reviewed article Link
  • Honeybee navigation: nature and calibration of the 'odometer' — Science (2000) · Peer-reviewed article
  • The chemoreceptor superfamily in the honey bee, Apis mellifera: expansion of the odorant, but not gustatory, receptor family — Genome Research (2006) · Peer-reviewed article
  • Detection and learning of floral electric fields by bumblebees — Science (2013) · Peer-reviewed article
  • Mechanosensory hairs in bumblebees (Bombus terrestris) detect weak electric fields — Proceedings of the National Academy of Sciences (2016) · Peer-reviewed article
  • The Mind of a Bee — Princeton University Press (2022) · Monograph
  • The Dance Language and Orientation of Bees — Harvard University Press (1967) · Monograph
  • The Biology of the Honey Bee — Harvard University Press (1987) · Textbook
  • HoneyHQ editorial synthesis — HEKNO Ltd · HoneyHQ synthesis

How sources are selected and weighted is set out in the sources and evidence policy.

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