We propose a practical concept that distinguishes the particular kind of weaponry that has
evolved to be used in combat between individuals of the same species and sex, which we …

The idea that interspecific variation in trophic morphology among closely related species
effectively permits resource partitioning has driven research on ecological radiation since …

Sexual size dimorphism (SSD) is widespread in nature and may result from selection
operating differentially on males and females. Rensch's rule, the increase of SSD with body …

Patterns of genetic structure in highly mobile marine vertebrates may be accompanied by
phenotypic variation. Most studies in marine turtles focused on population genetic structure …

The high frequency of same-sex sexual behaviors (SSB) in free-ranging animals is an
evolutionary puzzle because fitness benefits are often unclear in an evolutionary context …

Simple Summary Assessing the body size and body shape variations between sexes and
geographical populations can help us understand the adaptive responses of organisms in …

Animal morphological structure can influence behaviour and interaction with the
environment. Owing to their wide range of habitats, from aquatic to terrestrial, and their …

Various puncture routes, veins, arteries, heart, are used to take blood in animals. For
anatomical reasons, differences in blood composition are expected among puncture sites …

Mercury (Hg) is a toxic contaminant present in most aquatic ecosystems. High
concentrations pose serious threats to organisms and to human health. Because previous …

Hermann's tortoise (Testudo hermanni) is widely distributed in western and southern
Europe. Most populations in the western part of the distribution range (eg Spain, France …