The study of coloration in the polyphyletic reptilians has flourished in the last two decades, in
particular with respect to the underlying genetics of colour traits, the function of colours in …

Melanin is the most widespread pigment in organisms. Melanin-based coloration has been
repeatedly observed to be associated with the same traits and in the same direction in …

Under chronic stress, carotenoid-based colouration has often been shown to fade. However,
the ecological and physiological mechanisms that govern colouration still remain largely …

Sexual size dimorphism (SSD) evolves because body size is usually related to reproductive
success through different pathways in females and males. Female body size is strongly …

We review work relating glucocorticoids (GCs), male sexual signals, and mate choice by
females to understand the potential for GCs to modulate the expression of sexually selected …

Multiple traits may either signal different characteristics of a male or be redundant. These
multiple signals may convey different messages if they are intended for different receivers …

Color is important for signaling, camouflage, and thermoregulation in many species. The
costs and benefits of coloration can vary under different scenarios, increasing fitness under …

Elevated plasma corticosterone during stressful events is linked to rapid changes in
behavior in vertebrates and can mediate learning and memory consolidation. We tested the …

The honesty of ornamental signals of quality is often argued to be enforced via costs
associated with testosterone. It is still poorly understood, however, how seasonal variation of …

Colorful ornaments are important visual signals for animal communication that can provide
critical information about the quality of the signaler. In this study, we focused on different …