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We tend to anthropomorphize these behaviors, calling them "loving" or "romantic." Biologically, these storylines serve specific purposes:

Perhaps the most iconic symbol of love, mute swans often form pair bonds that last until death. When one partner dies, the survivor has been known to exhibit signs of grief, sometimes remaining solitary for years afterward. xhamster sex animal videos hot

In the human world, we often view lifelong commitment as the pinnacle of a romantic storyline. In nature, this is known as "social monogamy." While many animals are promiscuous to ensure genetic diversity, several species have evolved to stay together for life to increase the survival odds of their offspring. We tend to anthropomorphize these behaviors, calling them

If monogamy is the "happily ever after," courtship is the grand romantic gesture. Nature’s dating scene is filled with flair, music, and gifts. In nature, this is known as "social monogamy

Raising young is exhausting; two parents are often better than one.

Many pair-bonding animals show physiological distress when separated.