English: Vavilovian mimicry in secondary crops like rye or oats, compared to Batesian mimicry in insects. In Batesian mimicry, a mimic like a harmless hoverfly resembles a model like a stinging wasp, deceiving a dupe like an insect-eating bird into avoiding the mimic. In Vavilovian mimicry, a weed deceives a human (or machine) dupe by having its seeds the same size, shape, and weight as the seeds of the original crop, such as wheat. The secondary crop evolves characteristics of both seed and whole plant (such as becoming annual, as annual ploughing kills perennial weeds like wild rye) that match those of the original crop, pre-adapting it to become a crop in its own right.