Support for the role of sexual selection in speciation has grown over the last 30 years. Work
in this area, however, has largely focused on a single dominant question: when and how do …

Pigmentation is an important factor for the survival of organisms in different environments; in
fish, it plays a key role in social communication and shoal formation. Pigmentation mediates …

Abstract The Nicaraguan Midas cichlid species complex is a natural experiment where fish
from a large source population from turbid and shallow great lakes very recently (< 20,000 …

Background Color polymorphisms are a conspicuous feature of many species and a way to
address broad ecological and evolutionary questions. Three potential major evolutionary …

Venlafaxine is an antidepressant and anti-anxiety drug that has been detected in municipal
wastewater at low μg/L concentrations. In this study, the nest-defense behavior of adult male …

Oculocutaneous albinism is the result of a combination of homozygous recessive mutations
that block the synthesis of the tyrosine and melatonin hormones. This disability is associated …

Natural selection has been shown to drive population differentiation and speciation. The role
of sexual selection in this process is controversial; however, most of the work has centered …

Our knowledge of how male competition contributes to speciation is dominated by
investigations of competition between within-species morphs or closely related species that …

The evolutionary loss of sexual signals is taxonomically widespread and quite common.
These signals are often important not only in mate choice but also in male competition for …

In addition to hypopigmentation of the skin and red iris colouration, albino animals also
display distinct physiological and behavioural alterations. However, information on the …