Animal signals evolve by striking a balance between the need to convey information through
particular habitats and the limitations of what types of signals can most easily be produced …

Colour polymorphism occurs when two or more genetically-based colour morphs
permanently coexist within an interbreeding population. Colouration is usually associated to …

The evolution of sociality and traits that correlate with, or predict, sociality, have been the
focus of considerable recent study. In order to reduce the social conflict that ultimately comes …

Sexual selection has long been thought to increase species diversification. Sexually
selected traits, such as sexual signals that contribute to reproductive isolation, were thought …

The chemosensory system in tetrapods consists of glands that emit chemical signals and
specialized organs that capture these signals. Lizards mostly depend on this chemosensory …

Morphology can be associated with different aspects of an organisms' life and the size of
sensorial organs may allow inferences on the relevance of sensorial systems employed by …

Habitat degradation and climate change are major threats to the long-term persistence of
reptile populations. However, their roles on primary productivity instability remain unclear at …

Many animal species show considerable intraspecific phenotypic variation. For species with
broad distributions, this variation may result from heterogeneity in the strength and agents of …

Animals obtain environmental information using different sensory modalities, and sensory
organ size allows inferences concerning the importance of these modalities, which depend …

Males of several animals have intromittent organs and may use these in a communicative
context during sexual or intrasexual interactions. In some lizards, hemipenes eversion …