Production of foreign proteins in the tissues of transgenic animals represents an efficient and economical method of producing therapeutic and pharmaceutical proteins. In this study, we demonstrate ...

As males age their reproductive success typically declines. A study in fruit flies, led by University of Oxford researchers has found that while old males do produce fewer offspring than young males, ...

For male fruit flies, sperm is not enough in the battle to reproduce – at each mating a cocktail of proteins is transferred to the female, many of which directly influence female behaviours in ways ...

Semen is a fluid that is composed of sperm as well as fluids from the prostate and other glands. The resulting seminal fluid or ejaculate passes through several ducts on its way to the urethra. First, ...

Medically reviewed by Matthew Wosnitzer, MD Key Takeaways A seminal vesicle is a small gland above the prostate that helps ...

Medically reviewed by Matthew Wosnitzer, MD Changes in hormone levels or genetic mutations can increase the risk of hyperspermia.Treatment for hyperspermia includes hormone therapy and assisted ...