Mimicry in the field
Mimicry is more than two organisms looking alike to people. A useful explanation identifies a model, a mimic, and a receiver whose behavior is changed by the resemblance, then asks whether the signal is deceptive, shared, or serving another function.
Scope: A visual introduction to evolutionary mimicry; resemblance alone does not establish the model, receiver, selective history, or defensive status · Last updated
Name the three roles
A mimic resembles a model in a way that affects a receiver, such as a predator deciding whether to attack. This three-part structure separates evolutionary mimicry from accidental similarity. The relevant feature can be color, shape, sound, movement, or odor, and it need only be convincing through the receiver's senses under natural conditions. [1][3]
Separate deceptive and shared warnings
In Batesian mimicry, a relatively undefended mimic exploits a warning associated with a defended model; many hoverflies resemble stinging bees or wasps. In Mullerian mimicry, multiple defended species converge on a recognizable signal, potentially sharing the cost of predator learning. Real systems can be more complicated than either ideal category. [1][2][4][5]
Do not confuse resemblance functions
An insect shaped like a twig may be masquerading as an inanimate object rather than copying another signaling organism. Background matching primarily reduces detection, while aggressive mimicry can help a predator or parasite approach prey. Similar markings can therefore support different hypotheses, and natural history is needed to choose among them. [1][3][5]
Build a field case carefully
Photograph possible mimics and models separately without handling them. Record date, place, habitat, abundance, behavior, viewing distance, and which species actually overlap. Confirm identities with regional references, then look for published evidence about defenses and receiver responses. A side-by-side photograph is suggestive evidence, not a test of mimicry by itself. [1][2][4]
Related guides
Identify it and save the field note.
Where this guide comes from
Source-checked editorial guide. Last updated . This guide teaches identification and field skills; it is not a substitute for expert verification when it matters.
- Proceedings. Biological sciences — Signals, cues and the nature of mimicry ↗
- Nature Education — Predation, herbivory, and parasitism ↗
- Natural History Museum — Camouflage, mimesis, and resemblance ↗
- Nature — Selection overrides gene flow in mimicry ↗
- Die Naturwissenschaften — The evolution of Müllerian mimicry ↗
