Are humans monogamous? | 42 - The answer to almost everything | ARTE

Is Humanity Truly Monogamous? A Journey Through Love, Biology, and Culture. Is monogamy a natural calling or merely a social invention? This question strikes at the heart of human relationships, challenging ideals that have shaped societies for centuries. While the classic vow of lifelong fidelity is celebrated in countless cultures, reality often tells another story. In France and Germany, for instance, infidelity is the main cause of breakups, with nearly half of adults admitting to having cheated. Despite this, many still cling to the concept of monogamy, sometimes out of longing for security, sometimes because it's what's expected. Humans, it turns out, are pulled in two directions: the need for stability and anchoring, and a powerful curiosity that fuels the desire for new experiences. Monogamy promises a safe haven, but for some, it can also feel like a gilded cage. Cultural expectations and social norms reinforce monogamous ideals, yet more and more people are exploring alternatives, questioning whether we are truly “made” for monogamy. Looking at our nearest relatives in the animal kingdom, monogamy is the exception, not the rule. Gorillas and chimpanzees thrive in groups with multiple partners, while even so-called monogamous species like gibbons only behave that way due to their isolated environments, not innate loyalty. In the bird world, monogamy exists because both parents are needed to protect and nurture fragile offspring, but even here too, DNA studies reveal that not all chicks are fathered by the social partner. So, are there biological roots to monogamy in humans? Research points to ancient genes linked to memory and social bonding that become active in monogamous species, suggesting there's some genetic predisposition. But for humans, the story grows more complex. Differences in body size and reproductive anatomy compared to our primate cousins hint that early humans were not strictly monogamous. Instead, it was the evolutionary need to care for helpless infants that nudged our ancestors toward stable pair bonds. Over time, as societies settled, owned property, and needed to ensure inheritance, monogamy became tightly woven into laws and religious doctrines. Yet, history shows that monogamy is a cultural construct as much as a biological tendency. In many societies, forms of temporary or successive partnerships have always existed, and even religious texts are filled with tales of polygamy. The model of lifelong monogamy became idealized as societies sought to manage property, lineage, and social order—often at the expense of women's autonomy. Today, the landscape is changing again. With greater independence and shifting social roles, more people—especially younger generations—are open to non-monogamous arrangements like open relationships and polyamory. Studies show that satisfaction and trust can flourish in both monogamous and consensually non-monogamous relationships, and children raised in these diverse family structures fare just as well. In the end, about seventy percent of people still live in couples, and monogamy remains the majority model. But perhaps what's fading is not the practice itself, but the way it's idealized as a panacea for all relationship challenges. Rather than a law of nature, monogamy is revealed as a complex tapestry of biology, necessity, and culture—a model that works for many, but not all. The real evolution may lie in questioning the myths, exploring possibilities, and finding what brings fulfillment in our own lives.