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A butterfly is an insect in a radiation of moths and butterflies, with a life cycle passing through egg, larva, pupa and adult. The feeding and dispersal roles of caterpillar and winged adult can be very different.

An evolutionary biologist who tested Müllerian mimicry in the field through butterfly release experiments with different local co-models and release densities.^[ref]

A butterfly genus used in studies of warning patterns, mate recognition and gene flow.

Heliconius cydno is a butterfly closely related to Heliconius melpomene. Differences in habitat use, wing pattern and mating behavior make their comparison informative about reproductive isolation despite some exchange of genetic material.^[ref]

Heliconius erato is a tropical butterfly with geographically variable wing patterns. Resemblance to defended butterflies in the same region makes it a useful system for studying Müllerian mimicry and the relationship between local selection and inherited pattern variation.

Heliconius melpomene is a tropical butterfly used in research on wing-pattern evolution and speciation. Genome comparisons link mimicry-pattern variation with exchange of genetic material among related species.^[ref]

An insect is an arthropod whose typical adult body has a head, thorax and abdomen, with three pairs of thoracic legs. Wings and life-cycle stages vary among groups. Beetles, butterflies and bumblebees exemplify different modifications of that organization.

Metamorphosis is a developmental transformation between substantially different life stages, such as a tadpole becoming a frog or a caterpillar becoming an adult butterfly. It can reorganize feeding structures, movement, habitat use and internal tissues, rather than merely increasing size. Regulated cell differentiation, tissue remodelling and cell death contribute to the transition.

An early experiment showed that feeding tadpoles thyroid tissue accelerated differentiation relative to comparison diets. ^[ref] The intervention connected a secretory organ to the timing of a whole-body transformation. It did not isolate a pure hormone or establish that growth and differentiation are the same process. Modern thyroid hormone biology explains this amphibian example; insect metamorphosis uses a different hormonal system.

The monarch butterfly is Danaus plexippus, a butterfly whose larvae feed on milkweeds. Some populations undertake long-distance seasonal migration. Larval host dependence and adult movement link different habitats within one life cycle.^[ref]

A researcher who coauthored genetic mapping of mating preferences in Heliconius butterflies. Comparison of preference-associated regions with wing-pattern loci helped investigate how traits and preferences remain associated.^[ref]

An evolutionary biologist who investigated genetic control of butterfly wing patterns, linking Optix to repeated changes in mimetic colour patterns.^[ref]