The American family has changed and grown over time -- not only are families starting later, but they also look different. This Infographic shows how the traditional nuclear family has gradually transformed, and, while it by no means encompasses the myriad types of modern American families, it uses a few of the more common to explore the changing nature of what it means to be a family in the U.S. From same-sex couples and Choice Moms, to conception via assisted reproduction, and adoption, the composition of the American family has become richer and more complex, but one constant remains -- love.