Other forms: ethnologists
A scientist who compares the way different human societies and cultures function is an ethnologist. An ethnologist is sometimes called a cultural anthropologist.
An ethnologist is an anthropologist who specializes in studying data about the way different groups of people live, and then comparing and contrasting this information. By looking at the religious beliefs, languages, and social norms of various cultures, ethnologists can discover the things we all have in common. The ultimate goal of this work is to better understand humanity. The Greek root of ethnologist is ethnos, "people."