Ruddy ducks, by contrast, aren't very good at commitment: Their idea of a pair bond lasts a few days. The males fight with each other throughout the mating season and aren't particularly gentle ...

Duck penises regrow every mating season. Once the season ends, the penis begins to shrink and regress until it’s 10 percent of its full-grown size.

These lovers come from different sides of the quacks. An off-Broadway version of “West Side Story” has been playing out in Central Park this spring, as a male wood duck has found love with a female ...

Big duck energy. Ducks, among other waterfowl, are one of only 3% of bird species that even have a penis at all. ... The females choose their mates for their perceived quality; ...

In this fascinating video, we delve into the mating behaviors of the Khaki Campbell duck breed. Known for their prolific egg-laying capabilities, Khaki Campbell ducks display unique courtship and ...

The “dark side” of duck mating has its own chapter in the new book The Evolution of Beauty: ... And it all begins with the duck penis. Ducks, for one, are outliers within the avian population.

Since ducks are aggressive creatures, one in three duck mating events are rapes, and three or four ducks may attack a female duck at once which sometimes results in injuries and death.

The most common duck to mate with other species is the mallard. Greenheads will often breed with pintails, black ducks, wigeon, and teal. But as cool as it is to shoot a “pintallard,” hybridization ...