Colour polymorphic species are model systems for examining the evolutionary processes
that generate and maintain discrete phenotypic variation in natural populations. Lizards …

Reptiles use pterin and carotenoid pigments to produce yellow, orange, and red colors.
These conspicuous colors serve a diversity of signaling functions, but their molecular basis …

In this contribution, the aspects of reptile and amphibian speciation that emerged from
research performed over the past decade are reviewed. First, this study assesses how …

Background Many small vertebrates on islands grow larger, mature later, lay smaller
clutches/litters, and are less sexually dimorphic and aggressive than their mainland …

Theoretical models predict that the outcome of dyadic agonistic encounters between males
is influenced by resource‐holding potential, resource value, and intrinsic aggressiveness of …

Colour signals play a key role in regulating the intensity and outcome of animal contests.
Males of the common wall lizard (Podarcis muralis) show conspicuous ventrolateral …

Color polymorphism defies evolutionary expectations as striking phenotypic variation is
maintained within a single species. Color and other traits mediate social interactions, and …

Color polymorphism—two or more heritable color phenotypes maintained within a single
breeding population—is an extreme type of intraspecific diversity widespread across the tree …

Simple Summary The recent debate on the theory of evolution focuses on various aspects
that arise following the evidence of the advancement of knowledge in genetics and …

Color polymorphisms are common in lizards, which provide an excellent model system to
study their evolution and adaptive function. The lacertid genus Podarcis is particularly …