What is the definition of Anthropology Fluid?

"Anthropology fluid" is a term that humorously describes the ever-changing, unpredictable nature of human societies and cultures, like a chameleon in the field of anthropology. It suggests that just as water can flow endlessly in different directions, so do human customs, beliefs, and behaviors, adapting to the environment they're in.

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Here's an edgy example sentence: "Anthropology fluidity explains why some ancient tribes still wear their teeth as jewelry, even though they're not quite sure why."