How to pronounce“copulations”in English

So what that means is that as the eggs are being laid, females have to defend themselves from forced copulations by males.

In fact we know these ducks are so successful, because in species where 40 or 50 percent of the copulations are forced only two to five percent of the eggs in the nest are fathered

Now “forced copulation” is the word that biologists use now, but for over a century