Do new anatomical structures arise de novo, or do they evolve from pre-existing structures?
Advances in developmental genetics, palaeontology and evolutionary developmental …

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 …

A major question for the study of phenotypic evolution is whether intra-and interspecific
diversity originates directly from genetic variation, or instead, as plastic responses to …

Phenotypic plasticity in general and polyphenic development in particular are thought to
play important roles in organismal diversification and evolutionary innovation. Focusing on …

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 …

Sexual dimorphisms fuel significant intraspecific variation and evolutionary diversification.
Yet the developmental-genetic mechanisms underlying sex-specific development remain …

In most respects, Abigail and Brittany Hensel are normal American twins. Born and raised in
a small town, they enjoy a close relationship, though each has her own tastes and …