Humans are mostly monogamous, but men with status/wealth get more women. The tribal chief gets several wives while others have only one. In early civilization

Humans are mostly monogamous, but men with status/wealth get more women. The tribal chief gets several wives while others have only one. In early civilization the distribution was even more disparate with emperors having hundreds even thousands of wives/concubines. Today large numbers of male politicians, sports stars, business leaders, have one or more women on the side. Wars and fighting provide a ready surplus of women. In an Amazon tribe, the Yanomamo, I believe, 40% of all males die by murder or fighting. Recent genetic studies show that we have twice as many female ancestors as men. (Sorry, about the lack of citation.) Today jails, drug use, and general decrepitude keep large numbers of males out of circulation.