https://quillette.com/2018/06/07/explaining-monogamy-vox/

Rather than explaining monogamy, the Vox video portrays it as something alien and largely useless. It seems like this particular narrative was deliberately chosen before a frame of video had been shot. The expert they interviewed who got much of the detail right was David Barash, yet he was given the least screen time. I suspect they chose him because he wrote a book (which the makers of the video almost certainly did not read) called The Myth of Monogamy. But once they started talking to him they were perhaps disappointed to discover that the title refers to the historical prevalence of polygyny, and not the polyamorous utopia described by Christopher Ryan.