[5] Peregrine did dissertation research on the evolution of the Mississippian culture of North America, and conducted fieldwork on Bronze Age cities in Syria.

In 2009 Peregrine started the Lawrence University Archaeological Survey, which focuses on using geophysical techniques to locate unmarked graves in early Wisconsin cemeteries.

[18] In the mid-1990s Peregrine and colleagues Richard Blanton, Gary M. Feinman, and Steven Kowalewski developed “dual-processual” theory in studying Mesoamerican civilization.

[20] More recently Peregrine and colleague Steven Lekson have argued that the Mississippian and Ancestral Puebloan worlds should be viewed as linked together, along with Early Postclassic Mesoamerica, in a continent-wide “oikoumene”.

[21] They argue that only such a continental perspective can allow archaeologists to understand broad processes of coordinated change, such as the emergence of urban-like communities in many parts of North America around 900 CE.

[26] He argues that this work may help modern societies to create policies to enhance resilience to the increasing frequency of climate-related disasters caused by climate change.