Mobile carrying devices: The fundamental relationship between mobile containers & foresight is easily overlooked, resulting in their significance in the study of human cognitive development being largely unrecognized

Mobile containers in human cognitive evolution studies: Understudied and underrepresented. Michelle C. Langley  Thomas Suddendorf. Evolutionary Anthropology: Issues, News, and Reviews, August 3 2020. https://doi.org/10.1002/evan.21857

Abstract: Mobile carrying devices—slings, bags, boxes, containers, etc.—are a ubiquitous tool form among recent human communities. So ingrained are they to our present lifeways that the fundamental relationship between mobile containers and foresight is easily overlooked, resulting in their significance in the study of human cognitive development being largely unrecognized. Exactly when this game‐changing innovation appeared and became an essential component of the human toolkit is currently unknown. Taphonomic processes are obviously a significant factor in this situation; however, we argue that these devices have also not received the attention that they deserve from human evolution researchers. Here we discuss what the current archeological evidence is for Pleistocene‐aged mobile containers and outline the various lines of evidence that they provide for the origins and development of human cognitive and cultural behavior.