ABSTRACT
A glance at family texts published even a few years ago would reveal a startling discovery: Biology was completely ignored as a feature of family life. More recently, there has been a significant shift in the family scientists’ thinking about the role of biology as a feature of who we are, what decisions we make, and how we conduct family life. Until recently, most family scientists operated on the assumption that adults were primarily rational and social. It was assumed that most of the time, when a decision was made (or not made), it was because the family group got together, struggled, and came up with some type of conclusion based on how family members felt about the dilemma, cultural norms, family rules, expectations, and other social factors.
