Almost 30 y ago, the field of intraspecific phylogeography laid the foundation for spatially
explicit and genealogically informed studies of population divergence. With new methods …

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 …

The use of image data to quantify, study and compare variation in the colours and patterns of
organisms requires the alignment of images to establish homology, followed by colour …

Temperature rules the lives of ectotherms. To perform basic biological functions, ectotherms
must make behavioral adjustments to keep their body temperatures near a preferred …

The study of genital diversity has experienced rapidly burgeoning attention over the past few
decades. This research has shown that male genitalia in internally fertilizing animals exhibit …

Variation in color morph behavior is an important factor in the maintenance of color
polymorphism. Alternative anti-predator behaviors are often associated with morphological …

In this contribution, the aspects of reptile and amphibian speciation that emerged from
research performed over the past decade are reviewed. First, this study assesses how …

Climate‐mediated evolution plays an integral role in species migration and range
expansion. Gaining a clearer understanding of how climate affects demographic history and …

Squamates include all lizards and snakes, and display some of the most diverse and
extreme morphological adaptations among vertebrates. However, compared with birds and …

The signals that animals use to communicate often differ considerably among species. Part
of this variation in signal design may derive from differential natural selection on signal …