Males and females of nearly all animals differ in their body size, a phenomenon called
sexual size dimorphism (SSD). The degree and direction of SSD vary considerably among …

Fitness results from an optimal balance between survival, mating success and fecundity. The
interactions between these three components of fitness vary depending on the selective …

Animal vision is incomplete without the ability to change the gaze that involves coordinated
control of eyes, head, and body movements (McCluskey and Cullen 2007). Saccadic eye …

The integration of macroevolutionary pattern with developmental mechanism presents an
outstanding challenge for studies of phenotypic evolution. Here, we use a combination of …

While we joke that men are from Mars and women are from Venus, our gender differences
can't compare to those of many other animals. For instance, the male garden spider …

The degree and direction of sexual size dimorphism (SSD) vary greatly between animal
species. At the ontogenetic level, SSD may result from sex differences in birth size, growth …

Variation in the degree of sexual size dimorphism (SSD) among taxa is generally
considered to arise from differences in the relative intensity of male–male competition and …

Aim The diversity of brood size across animal species exceeds the diversity of most other life‐
history traits. In some environments, reproductive success increases with brood size …

Sexual-size dimorphism (SSD) is widespread in animals. Body length is the most common
trait used in the study of SSD in reptiles. However, body length combines lengths of different …

Aim Body size explains most of the variation in fitness within animal populations and is
therefore under constant selection from ecological and reproductive pressures, which often …