Our view of the evolution of sexually selected traits and preferences was influenced radically
in the 1990s by studies that emphasized how signals interact with sensory properties of …

Individuals of some animal species have been taught simple versions of human language
despite their natural communication systems failing to rise to the level of a simple language …

Sexual selection was proposed by Darwin to explain the evolution of male sexual traits such
as ornaments and elaborate courtship displays. Empirical and theoretical studies have …

The processes of adaptation and speciation are expected to shape genomic variation within
and between diverging species. Here we analyze genomic heterogeneity of genetic …

Across two field studies of romantic attraction, we demonstrate that postural expansiveness
makes humans more romantically appealing. In a field study (n= 144 speed-dates), we …

The elaborate train of male Indian peafowl, Pavo cristatus, is thought to have evolved in
response to female mate choice and may be an indicator of good genes. The aim of this …

Animals as diverse as arthropods [1], fish [2], reptiles [3], birds [4], and mammals, including
primates [5], depend on visually acquired information about conspecifics for survival and …

Hybridization can be an evolutionary creative force by forming new polyploid species,
creating novel genetic variation or acting as conduits of potentially advantageous traits …

Males of many animal species perform specialized courtship behaviours to gain copulations
with females. Identifying physiological and anatomical specializations underlying …

Organismal behavior, with its tremendous complexity and diversity, is generated by
numerous physiological systems acting in coordination. Understanding how these systems …