What do ethnological scientists study?

Ethnologists study the features of the development and history of an ethnos. Ethnic groups are all nationalities that live on our planet. All nationalities have gone through a certain stage of development from inception to the present time. Some ethnic groups have become extinct, and some still exist in the modern world. Ethnographers pay attention to the development of a nation, its achievements, difficulties, peculiarities of life and political structure. Ethnologists also pay attention to the culture of the ethnos, its value system and the peculiarities of its mentality.