By Bryan Nelson, Mother Nature Network
Humans in many cultures like to think of themselves as a faithful species, but when it comes to true fidelity, many other animals offer better examples of how to keep a relationship together. Although monogamy and lifelong pair bonds are generally rare in the animal kingdom, here’s our list of 11 animals that pull it off.
Gibbons are the nearest relatives to humans that mate for life. They form extremely strong pair bonds and exhibit low sexual dimorphism, which means that males and females of the species are of roughly equal size, a testament to the fact that both sexes are on relatively equal footing in their relationships.