Then, according to the Unit 1 readings by Hodges and Jerry Adler and the video on Making Stone Tools, what effects might our own early inventions have had on human evolution? To what extent might the invention of stone tools and the ability to make and control fire have influenced the development of the human body and brain? To what extent might the invention of stone tools and the ability to create and control fire have influenced the development of human social groups and human culture/society? Make sure to discuss both stone tool use and fire here.