Japanese medaka (Oryzias latipes) has been used as a model organism in different
research fields, including reproductive physiology. Sperm motility is the most important …

Mounting evidence shows that the female reproductive fluid (FRF) can differently affect
sperm performance of different males by biasing paternity share among competing males …

Age-dependent reduction in reproductive success can arise due to multiple factors including
a deterioration of reproductive physiology. Senescing males have been shown to produce …

Female reproductive fluid (the fluid that surrounds the eggs) has attracted increasing
attention for its role in fertilization and postmating sexual selection through its effects on …

Sperm competition is a powerful force driving the evolution of ejaculate and sperm traits.
However, the outcome of sperm competition depends on many traits that extend beyond …

Female mating rates vary widely, even among closely related species, but the reasons for
this variation are not fully understood. Across Drosophila species, female mating …

Short-term storage on ice of zebrafish (Danio rerio) sperm has been successfully applied in
diverse basic experimental research. The optimal and economically efficient short-term …

Maximizing the life-long reproductive output would lead to the prediction that short-lived and
fast aging species would undergo no–if any–reproductive senescence. Turquoise killifish …

The activation of zebrafish sperm is essential for advancing vertebrate research, including
studies in germplasm physiology and cryopreservation. In this study, a magnetic microrobot …

Sperm cells age during storage in the male reproductive organs, which can lead ejaculate
quality to decline dramatically over time. Such may pose a particular concern in species with …