Behavioral development is a field of study that examines how individuals' behavior changes and develops over time. This area of research often focuses on understanding how genetic, environmental, and social factors interact to shape individuals' behaviors from infancy through adulthood. Researchers in this field may study a wide range of behaviors, including social, emotional, cognitive, and physical development. By examining how behaviors develop, researchers can gain insights into factors that influence individuals' development and potentially identify ways to support healthy development in individuals across the lifespan.