Large Duck Wangs

[Jonathan]

Ducks in the NY Times

To support her argument, Dr. Brennan notes studies on some species that have found that forced matings make up about a third of all matings. Yet only 3 percent of the offspring are the result of forced matings. “To me, it means these females are successful with this strategy,” she said.

Females have anti-rape defense. Males have units equipped to make mating through that defense possible.