cross-fostering studies

Cross-fostering studies involve swapping young animals or humans between different parents or environments to analyze how genetics and upbringing influence traits like behavior or health. By observing individuals raised by different caregivers, researchers can distinguish which characteristics are inherited (genetics) versus developed through experience and environment. For example, if a child raised by one set of parents exhibits traits similar to their biological parents, it suggests a genetic influence; if traits resemble the foster parents, environment may play a larger role. These studies help scientists better understand the interaction between nature and nurture.