The origin of novel traits is what draws many to evolutionary biology, yet our understanding
of the mechanisms that underlie the genesis of novelty remains limited. Here I review …

Sexually‐selected exaggerated traits tend to be unusually reliable signals of individual
condition, as their expression tends to be more sensitive to nutritional history and …

Sex-specific trait expression is frequently associated with highly variable, condition-
dependent expression within sexes and rapid divergence among closely related species …

The origins of novel complex phenotypes represent one of the most fundamental, yet largely
unresolved, issues in evolutionary biology. Here we explore the developmental genetic …

This book describes the evolutionary and ecological consequences of reproductive
competition for scarabaeine dung beetles. As well as giving us insight into the private lives …

Many scarab beetles produce rigid projections from the body called horns. The exaggerated
sizes of these structures and the staggering diversity of their forms have impressed …

Understanding how novel complex traits originate is a foundational challenge in
evolutionary biology. We investigated the origin of prothoracic horns in scarabaeine beetles …

Understanding the origin of novelty is a key question in evolutionary developmental biology.
In arthropods, the body wall has served as a repeated source of morphological novelty. In …

Beetle horns are attractive models for studying the evolution of novel traits, as they display
diverse shapes, sizes, and numbers among closely related species within the family …

The quantification of cranial sexual dimorphism (CSD) among modern humans is relevant in
evolutionary studies of morphological variation and in a forensic context. Despite the …