Sperm Storage Tubules (SSTs) allow female ducks to store sperm for extended periods, decoupling insemination from fertilization and enabling delayed fertilization. Female ducks have more control over ...

AT first glance, ducks seem harmless and kind of adorable. But some of their mating habits are truly scary and confronting. That’s right, our beloved mallards engage in some seriously disturbing ...

What if you could tell a potential partner’s STD status just by looking at them? That’s the evolutionary advantage that ducks appear to have. It turns out mallard ducks have a problem with the males ...

Duck mating behavior reveals an intense conflict between males and females driven by competing reproductive strategies. Male ducks often pursue forced mating, leading to aggressive encounters that can ...