Asymmetries are a pervading phenomenon in otherwise bilaterally symmetric organisms
and recent studies have highlighted their potential impact on our understanding of …

Genital asymmetry is a recurring phenomenon in insect morphology and current data
suggest that it has arisen multiple times independently in several neopteran orders. Various …

The asymmetric male and female genitalia of the spider Metagonia mariguitarensis
(González-Sponga) are described, based on semi-thin serial sections and SEM …

Some recent models suggest a new role for evolutionary arms races between males and
females in sexual selection. Female resistance to males is proposed to be driven by the …

Male genitalia show patterns of divergent evolution, and sexual selection is recognised as
being responsible for this taxonomically widespread phenomenon. Much of the empirical …

Insect genitals vary greatly among species and provide a key tool for species-level
taxonomy. Insects differing in the genitalia are often treated as discrete, reproductively …

The great diversity in genital shape and function across and within the animal phyla hamper
the identification of specific evolutionary trends that stretch beyond the limits of the group …

This study tested predictions regarding male mating preferences which were based on some
aspects of female reproductive morphology which may influence sperm precedence patterns …

The structures with which male spiders transfer sperm to females are unique among all
animals in several respects. From the ancestral arachnid sperm transfer mechanism via an …

Morphological traits involved in male–female sexual interactions, such as male genitalia,
often show rapid divergent evolution. This widespread evolutionary pattern could result from …