In Nature There's Love for Life

Waver Albatross

On Valentine's Day, Scientific American Magazine presented us with some beautiful pictures of genetic monogamic animals which, after choosing their mates, stick with them for life.

Although you may think that Humans are included in this study, you may well get rid of that impression because as said in this study, men (more than women) tend to have more than one partner in life. 

Albatrosses are famous both for their flirtatiousness—taking the form of ritualized mating dances—and for their fidelity. Most settle down with a single mate for life, which can mean decades. But not all the males are entirely faithful. For the waved albatross (Phoebastria irrorata), genetic testing of offspring has revealed that a quarter of them had different dads. For the wandering albatross (Diomedea exulans), only about one in 10 chicks were sired by different sirs— (which suggests perhaps they should trade species names). from here

Wikimedia Commons/Barfbagger 

Lar Gibbons

One of the only primate examples of monogamy, Lar gibbons (or white-handed gibbons, Hylobates lar) have long been documented living in close-knit families. The coupled male and female will spend time grooming each other and (literally) hanging out together in the trees. But more recent research has found that these unions are not quite as uncomplicated as once thought. With mates occasionally philandering, and even sometimes dumping a mate, the gibbon mating culture has started to look perhaps a little bit more like ours. from here

Wikimedia Commons/MatthiasKabel