4 Inheritance inﬂuences behavior Behavior is any action that can be observed and described. Lovebird experiments and studies of human twins support the hypothesis that behavior has a genetic basis (nature).
6 Learning can also inﬂuence behavior Learning (nurture) causes a durable change in behavior. In laughing gull chicks, visual experience and improvement in motor skills affect the development of begging behavior. Imprinting is a form of learning that allows baby birds to follow the first moving object they see during a sensitive period. Social interactions assist song learning in birds.