Funerary art has the body as its main material component, expresses responses to death and offers insight into relationships between the living and the dead. Chinchorro hunter-gatherer-fisher societies along the Atacama Desert coast provide a key example of such connections, having developed one of the world's oldest-known systems of post-mortem body transformation (c. 7000–3250 BP). A study of 162 modified Chinchorro bodies identifies diachronic changes in these practices, including a decrease in internal stuffing—adding invisible contents that created corporeal volume—and an increase in external body treatment that created visible features. The authors propose that such manipulation was a meaningful form of social embodiment designed to construct a collective identity.

Comparing the records of fishing communities made in the sixteenth to twentieth centuries to the archaeological evidence of the sixth millennium BP, the authors propose a sophisticated prehistoric network for the coastal people of northern Chile. Residential seashore settlements link both along the coast to temporary production sites for fish, and inland to oasis-based providers of products from the uplands and salt flats. Sharing values and kinsfolk, the coastal communities must have travelled extensively in boats which, like their modern counterparts, made use of floats of inflated sealskin.