Visual signaling in animals can serve many uses, including predator deterrence and mate
attraction. In many cases, signals used to advertise unprofitability to predators are also used …

Aposematic passion-vine butterflies from the genus Heliconius form communal roosts on a
nightly basis. This behaviour has been hypothesized to be beneficial in terms of information …

Toxic Heliconius butterflies have yellow hindwing bars that – unlike those of their closest
relatives – reflect ultraviolet (UV) and long wavelength light, and also fluoresce. The pigment in …

In true color vision, animals discriminate between light wavelengths, regardless of intensity,
using at least two photoreceptors with different spectral sensitivity peaks. Heliconius …

Despite more than a century of biological research on the evolution and maintenance of
mimetic signals, the relative frequencies of models and mimics necessary to establish and …

. Heliconius passion-vine butterflies form communal roosts on a nightly basis as an anti-predatory
defense. Although past studies have evaluated various components of this behavior, …

Adaptive radiation is characterized by rapid diversification that is strongly associated with
ecological specialization. However, understanding the evolutionary mechanisms fueling …

The swallowtail butterfly Papilio polytes is known for its striking resemblance in wing pattern
to the toxic butterfly Pachliopta aristolochiae and is a focal system for the study of mimicry …

Batesian mimicry is characterized by phenotypic convergence between an unpalatable model
and a palatable mimic. However, because convergent evolution may arise via alternative …

. The Giant Swallowtail butterfly, Papilio cresphontes Cramer (Papilionidae), has been reported
in New York State for nearly 150 years. In recent years there has been an unexplained …