Investigating the role of food processing in human evolution: a niche construction approach

While it is generally agreed that food processing has had a role in human evolution, the specific ways that is has affected our evolution are not well understood. Using a Niche Construction Theory (NCT) perspective, coupled with methodologies borrowed from “post-harvest” research in the plant sciences, this paper investigates the means and mechanism by which food processing is of evolutionary consequence. The central tenet of NCT is that organisms have an active role in their own evolution through reciprocal interactions with their environments; niche construction is understood to occur when organisms initiate long-term changes to their environments that modify the selection pressures on themselves and their descendants (and on other organisms in the environment). Humans and our hominin ancestors are considered to be the ultimate niche constructors due to our ability to modify selection pressures through diverse culturally generated and transmitted cultural means, i.e. cultural niche construction. In this paper, post-harvest methods are used to identify how food processing could feasibly have permitted hominins to modify their evolutionary selection pressures. Food processing is shown to facilitate access to increasing amounts of digestible nutrients and energy (kilocalories/kilojoules) as well as promoting increased dietary breadth and making possible the production of safer and more stable foods. It is argued that these advancements catalysed related technological and ecological skills and knowledge, which together with the nutritional benefits, further triggered changes in hominin brain and body and locomotory adaptations and increased longevity, disease prevention and juvenile survival rates.     

Catholic-Confucian Mortuary Practices in a Rural Manchurian Cemetery

Historical Archaeology - Catholic missionaries were active among rural populations in Manchuria, in northeast China, around the turn of the 20th century. Their presence influenced everything from...     

Jean-Jacques Rousseau on women and citizenship

The aim of this article is to shed light on the eighteenth-century Italian reflection on luxury and consumption in a comparative perspective, clarifying, on the one hand, the complex significance that it assumed and, on the other, the specificity of the Italian context, marked by the immense political value of the debate on the subject. In particular this objective will be pursued through the analysis of specific cases among the many offered by the Italian context and through different research strands. These are: the debate on the evaluation of luxury; the transition from the notion of luxury to that of consumption; and the discussion on luxury and consumption in the revolutionary context. This article intends to outline the particular contribution made by Italian thought, which conveyed a multifaceted discourse of social reform, critique and understanding built on more even foundations, and at the same time to clarify what contribution can be made to current historiography by the study of this theme within eighteenth-century Italy.