Rapid genitalia evolution is believed to be mainly driven by sexual selection. Recently,
noncopulatory genital functions have been suggested to exert stronger selection pressure …

Attachment to surfaces is a major aspect of an animal's interaction with the environment.
Consequently, shaping of the attachment system in relation to weight load and substrate is …

The frequent wounding of female bedbugs (Cimex lectularius: Cimicidae) during copulation
has been shown to decrease their fitness, but how females have responded to this cost in …

Mate choice is often a role assigned to females. Already Darwin realised that males are
eager to copulate, and females are choosy. However, male mate choice is not as rare as …

Male bed bugs pierce females through the body wall and inseminate directly into the body
cavity. It has previously been shown that such traumatic insemination carries costs for …

Marked diversification of genital morphology is common in internally fertilizing animals.
Although sexual selection may be the primary process controlling genital evolution, factors …

To identify factors leading to the correlated evolution of exaggerated male and female
genitalia, we studied the effects of the variable dimensions of corresponding functional …

During mating, male bed bugs (Cimicidae) pierce the female abdomen to inject sperm using
their needle-like genitalia. Females evolved specialized paragenital organs (the spermalege …

The cimicids, or bed bugs, belong to a highly specialized hematophagous taxon that
parasitizes primarily humans, birds, and bats. Their best-known member is the bed bug …

Genital coevolution is a pervasive phenomenon as changes in one sex tend to impose
fitness consequences on the other, generating sexual conflict. Sexual conflict is often …