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Evolutionary anthropology is the interdisciplinary study of the evolution of human physiology and human behaviour and the relation between hominins and non-hominin primates. Evolutionary anthropology is based in natural science and social science, combining the human development with socioeconomic factors. Evolutionary anthropology is concerned with both biological and cultural evolution of humans, past and present. It is based on a scientific approach, and brings together fields such as archaeology, behavioral ecology, psychology, primatology, and genetics. It is a dynamic and interdisciplinary field, drawing on many lines of evidence to understand the human experience, past and present.

What branch of anthropology studies human behavior and the relation between primates?
Evolutionary
Evolutionary anthropology is the interdisciplinary study of evolution (change over time) in human physiology and behavior, as well as their relation to non-human primates. The field focuses on both biological and cultural evolution of humans. Thus it can be concluded that evolutionary anthropology studies human behavior and the relation between primates..