ABSTRACT
Because of the fascinating changes they undergo throughout their complex life cycle, amphibians have been extensively studied in relation to their life history, physiology and behavior, particularly that related to their communication modalities. Some amphibians have also become model systems for biomedical research, and for understanding the cellular mechanisms of skin pigmentation. More recently, a growing body of research has addressed more closely the adaptive function of amphibian colour patterns, particularly in the contexts of interactions between predators and prey, and intraspecific communication. Likewise, recent studies have explored in more detail the molecular mechanisms underlying the huge colour pattern diversity observed in this group. Taking advantage of this momentum, this chapter (1) provides an overview of the research conducted on amphibian coloration, both in the laboratory and in the field, to understand its functional basis, antipredator function, and role in sexual selection; and (2) identifies avenues of research yet to be explored when seeking to understand how amphibian colours have evolved.
