Sex-specific morphs exhibit discrete phenotypes, often including many disparate traits, that
are observed in only one sex. These morphs have evolved independently in many different …

Many conspicuous ornamental traits in animals are expressed in both males and females.
Despite this, most research has focused on sexually dimorphic ornamentation. Mutual …

Phenotypic plasticity–the ability of an individual organism to alter its features in direct
response to a change in its environment–is ubiquitous. Understanding how and why this …

Polyphenism is the phenomenon where two or more distinct phenotypes are produced by
the same genotype. Examples of polyphenism provide some of the most compelling systems …

The biological and social sciences often generalize causal conclusions from one context or
location to others that may differ in some relevant respects, as is illustrated by inferences …

One motivation in the study of development is the discovery of mechanisms that may guide
evolutionary change. Here we report how development governs relative size and number of …

In spite of their relatively small size as a group of insects, dung beetles have attracted an
inordinate amount of scientific interest over the years, starting with the work of the French …

It has long been recognized that male mating competition is responsible for the evolution of
weaponry for mate acquisition. However, when females mate with more than one male …

Developmental bias, or genetic channeling, can influence the tempo and direction of
evolution and, thus, become reflected in patterns of biodiversity. Twenty years ago, this …

Models of population dynamics generally neglect the presence of males. While this
assumption holds under many circumstances, behavioural ecology increasingly tells us that …