Explain what the linguistic anthropology subfield focuses on, and how anthropologists in this subfield study evolution.

Evolution 

Explain what the linguistic anthropology subfield focuses on, and how anthropologists in this subfield study evolution. Find at least one scholarly source that identifies a specific research project in which anthropologist from this subfield study evolution. For example, an archaeologist may look at how tools have changed through time, and what has caused that change (conduct your own original research, do not use this example). Describe the research project and its impact in our understanding of evolution.