Keyboard Access Tips

To play The Why Factor - Monogamy you need to enable JavaScript. How?

The Why Factor - Monogamy

What's monogamy got to do with love? We assume they go together but how important really is sexual exclusivity? And what happens when couples challenge this ideal?

Around the world people have different rules for their relationships - rules often dictated by culture and religion. In many societies the most important of these is sexual fidelity - true love and monogamy are expected to go hand in hand - but why should love mean forsaking all others? And what happens to relationships when monogamy is cast adrift? (Image of couples kissing and celebrating the eve of Valentine's Day. Credit: Getty Images)

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.