Seminal fluid contains protein factors that, when transferred from a male to a female at mating, affect reproductive success. This is true of many different animals, from crickets to primates. In ...

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 ...

What Is the Seminal Vesicle? The seminal vesicles—sometimes called the seminal glands or vesicular glands—are part of the reproductive system in people assigned male at birth. They are small glands ...

Seminal fluid can appear pink, green or even black.