Ethnology is a specialized skill that involves the scientific study of human cultures and societies. It requires researchers to use a range of methods and techniques to investigate the customs, beliefs, and practices of different groups of people, from small tribal communities to large modern societies. Ethnologists may use approaches such as participant observation, interviews, surveys, and analysis of artifacts and documents to understand the social and cultural dynamics of different groups. This skill is often used to inform policy decisions and to promote cross-cultural understanding and communication.