Research Projects in the Department of Archaeology

Tracking the early emergence of derived Homo-like cerebral features in the hominin fossil record can be expected to contribute to an understanding of the timing (i.e., chronology) and mode (i.e., process) of critical brain changes. Because brain tissue is not preserved in the fossil record, studies of hominin brain evolution focus on brain endocasts (i.e., replicas of the inner table of the bony braincase).

Our knowledge of human evolution is limited by several factors. One is tightly linked to the nature of the fossil record, as bones of our extinct human relatives and other primate species rarely appear in archaeological and paleontological sites, and when they do, they very commonly appear in an isolated fashion and/or are highly fragmented. These factors more severely affect studies of limb bones, which have been vaguely analysed or even ignored in certain cases.

How did our ancestors walk? Perhaps the greatest challenge that this question has posed in the past, is the lack of methodological applications in which no study has previously reconstructed how our ancestors moved using biomechanical modelling techniques. We need to consider not just individual bones when reconstructing movement, but to look at the full body to begin to tell the story of our ancestors’ movement. Muscles animate our body, permitting us to walk, run and even dance. We must reconstruct the muscles of the body to understand ancestral locomotion.

Despite recent progress in molecular analyses and the constant increase of the hominin remains in the fossil record, the chronological, geographical and evolutionary context of the emergence of the genus Homo remains largely debated. More importantly, the identity of our direct ancestors and assessment of the adaptations characterizing our genus remain unclear.

Around 1,200 years ago, archaeological evidence suggests pre-existing pastoralist societies that had been present in some parts of eastern Africa since c. 5,000 BP experience significant cultural and economic change. Materials signs of these include the uptake of iron smelting technologies, new ceramic styles, and changes in food production. In the following centuries, the region also experienced several significant shifts in climate, alternating between periods of increased rainfall and extended droughts.

Our understanding of the origins of our species, Homo sapiens, has undergone a major shift. New fossils, dates and genomic studies have consolidated our African origin. Yet, they also indicate a deeper past, involving multiple events. These events stretch to nearly three quarters of a million years ago (Ma), and take the problem of modern human origins into an entirely different climatic and ecological context.

Human evolution is a central research area in biology and anthropology and has a history of research going back more than 150 years. For most of that time, evidence has come from digging up fossils and archaeological remains. Research in human evolution has been transformed by the impact of genomics and the development of ancient DNA methodologies, producing new insights into past demography, dispersal and admixture patterns, social behaviour, selection, disease history, and more.

How did the biomechanics and ergonomics of the human hand influence the use and production of Palaeolithic stone tools? Traditionally, stone tools have been analyzed for their morphological properties and technological characteristics to infer the cognitive and social evolution of early hominins and modern humans. However, the role of musculoskeletal aspects in the effective use of these tools has been largely overlooked, resulting in an incomplete understanding of Palaeolithic technologies.

This project is a response to calls to build long-term sustainability and resilience into pastoral social-ecological systems in sub-Saharan Africa through provision of deep histories of human-environment interactions. It focuses on collecting and analysing archaeological and related data on the responses of pastoralist communities inhabiting the Laikipia and Leroghi plateaus, northern Kenya, to cycles of extreme drought and enhanced rainfall over the last millennium.

Traumatic death affects our daily life, but how did traumatic mortality affect human behaviour from an evolutionary perspective? TRAUMOBITA aims to understand how traumatic mortality among prehistoric humans shaped our behaviour during the Late Pleistocene to the Middle Holocene. Confirming that how we died had an enormous influence on our ancestors and represents an enormous change in how we understand human societies.

As the complex mosaic of Quaternary human lineages across and beyond Africa becomes increasingly apparent, an accurate chronology is critical to disentangle the patterns and process, particularly those that link human evolution to palaeoenvironmental and climatic change.