Ancient molecules and human prehistory

Abstract

DNA and other molecules found in ancient remains are yielding new information about the origins, spread, interaction, and culture of early humans. Molecules of animal fats preserved in archaeological pottery have shown that in medieval societies people ate non-ruminant animals, such as pigs, but burned tallow from ruminants, such as sheep and cattle. Geochemical analysis of bitumen in the Middle East has documented ancient trade routes. Studies of molecular genetic diversity have shed light on when and how cattle were domesticated. Analysis of human hair from remains up to 5200 years old has revealed the diets of those ancient people. DNA recovered from other remains has also provided evidence for theories about the origins and spread of agriculture, and human migration into the Pacific.     

Cattle in the West African savanna: evidence from 1st millennium CE Kirikongo, Burkina Faso

The West African sahel and savanna are today home to diverse cattle breeds derived from complex social, political and environmental processes over at least the past four thousand years. Current evidence from the sahel and its floodplains indicates multiple sizes of cattle over time that may correspond to modern breeds. However, little is known about the cattle further south in the savanna, such as the West African Shorthorn. These humpless cattle are well adapted to the environmental conditions of more humid zones, including their significant resistance to trypanosomiasis, or sleeping sickness. In this paper I present new archaeozoological data from the Iron Age village of Kirikongo, Burkina Faso (100-1700 CE) that indicate the presence of small cattle in the 1st millennium CE similar in size to West African Shorthorn. These results are contextualized through comparisons with other archaeological sites and environmental data in Central West Africa, suggesting that small cattle are generally associated with the savanna environment over time, and their distributions may have oscillated with climatic changes. Lastly, interregional processes are assessed given Kirikongo’s evidence for small savanna cattle in western Burkina Faso and their subsequent adoption in the Inland Niger Delta of Mali.     

An African origin for African cattle? — some archaeological evidence

Instead of the usual assumption that the Sanga cattle of Africa arose from the crossing of taurine cattle (Bos taurus) from North Africa or the Middle East with humped cattle (Bos indicus) originating in the Indian sub-continent, it is argued that they are of ancient autochthonous origin and have come to be mixed with taurine and humped cattle probably only in the last few hundred years, which is why they share a mosaic of characters with the other two taxa. Much more work needs to be done on the osteology of Sangas and of cattle remains from archaeological sites in Africa, but if this model proves to be correct African cattle should be regarded as a taxon of equal status toBos taurus andBos indicus.

---

Résumé Au lieu de l'hypothèse habituelle selon laquelle le bétail Sanga africain provient du croisement du bétail taurin (Box taurus) d'Afrque du Nord ou du Moyen Orient avec le bétail à bosse (Bos indicus) dont l'origine est le sous-continent indien, nous pensons que ce bétail a une origine autochtone ancienne et que les croisements avec les bétails taurins et à bossus n'ont probablement eu lieu que durant les quelques dernières centaines d'années, ce qui explique pourquoi ils partagent une mosaïque de caractères avec les deux autres taxa. De nombreuses recherches restent à faire sur l'ostéologie des Sanga ainsi que sur les restes de bétail des sites archéologiques africains, mais si ce modèle s'avère correct, le bétail africain devra être regardé comme un taxon équivalent à celui deBos taurus etBos indicus.

     

Domestic Pigs in Africa

The history of African pig breeds is still controversial due to the relative scarcity of archaeological and genetic data clarifying their origins. While these breeds might descend from Near Eastern pigs entering the continent via Egypt during the Neolithic, Africa may be a primary domestication locus for pigs, as indicated for other species such as cattle and donkeys. In this regard, characterisation of the mitochondrial gene pool of African pig breeds has revealed a very low frequency of Near Eastern alleles, suggesting that, if Fertile Crescent pigs played a part in the foundation of African breeds, their genetic signature has been substantially erased. Interestingly, genetic analysis of western and eastern African pig breeds has revealed a strong phylogeographic pattern, with the latter harbouring Far Eastern alleles at high frequencies. This finding is consistent with data obtained for chickens and confirms that livestock was transported in ancient times, from the Far East to Africa as a consequence of the Indian Ocean trade. European colonisation of Africa also involved the introduction of exotic swine breeds such as Iberian pigs. The confluence of the highly divergent European and Far Eastern Sus scrofa gene pools contributed to significantly enrich the genetic reservoir of African swine breeds, favouring their adaptation to environmental conditions that are often harsh. Conservation of this genetic legacy will be of utmost importance to ensure the prosperity of current resource-based subsistence farming systems in Africa.     

再论中国家养黄牛的起源——商榷《中国东北地区全新世早期管理黄牛的形态学和基因学证据》一文

针对有学者提出的中国最早黄牛的管理出现在距今10500年前的论述,我们从牙齿上严重磨耗现象的成因、动物遗存的采集和研究方法、中国家养黄牛起源的历史背景等3个方面对其所提出证据当中存在的问题进行一一探讨,认为该下颌骨标本并不能与人为管理建立联系。在此基础上,结合新的考古材料和研究,提出我们关于中国家养黄牛起源的认识,具体包括起源的时间和地点、传入路线、喂饲方式、起源动因等4个层面。     

What Is a Hunter-Gatherer? Variation in the Archaeological Record of Eastern and Southern Africa

This article reviews the recent history of the archaeology of African hunter-gatherers, focusing on debates around the origins of modern humans and the destiny of hunter-gatherers with the advent of food production. African archaeologists are developing an increasing appreciation for the diversity of African hunter-gatherer societies. Understandings of hunter-gatherers based primarily on ethnography are being successfully challenged and extended.     

The Middle Stone Age south of the Limpopo River

Current interest in the origins of anatomically modernHomo sapiens has focused attention on early modern human remains and related archaeological materials associated with the southern African Middle Stone Age. While the anatomically modern status and a Last Interglacial or later age for the human fossils enjoy general support, issues related to the definition of the Middle Stone Age, its dating, and the interpretation of human behavior lack consensus. Available evidence suggests that the anatomically modern human skeleton appeared well before many aspects of the subsistence and symbolic behavior that characterize recent foragers and that Middle Stone Age technology persisted longer in southern Africa than its northern hemisphere counterpart.     

Genetics and African Cattle Domestication

Whether cattle domestication occurred independently on the African continent is among the most controversial questions in the Holocene archaeology of northern Africa. One long-established scenario, based upon early archaeological evidence, suggested that Africa’s earliest cattle derived from several introductions from Southwest Asia through the Nile Valley, or via the Horn of Africa. Based upon archaeofaunal remains retrieved in the late twentieth century, other archaeologists argued that an independent domestication of the African aurochs gave rise to Africa’s earliest domestic cattle. Up to now, the genetic data have also been controversial. This paper reviews the archaeological evidence and the scope of debate, and then focuses on the recent contributions of genetic research to clarifying these issues.     

Animal Genetics and African Archaeology: Why It Matters

This article introduces the special issue of African Archaeological Review on the relevance of African livestock genetics to archaeology on the continent. It shows how modern and ancient animal genetic research in Eurasia has substantially revised archaeological scenarios for the origins and spread of food production there. It argues that, in contrast to colleagues in Europe and Asia, Africanist archaeologists have generally been slow to engage in truly collaborative research with archaeogeneticists, with some notable exceptions. It builds a case that animal introductions and domestication are as much social, cultural, and economic processes as they are ecological in nature. Through examples, it outlines some profound selective effects that animal keeping has had on humans themselves. Building on the concepts of taste and embodied practice in Stahl’s (2002) discussion of artifacts and differently scaled encounters with non-local commerce, it develops suggestions for archaeologically studying genetically distinctive domestic animals as part of local and long-distance economic systems. Finally, it comments on the issue’s review articles and offers suggestions for ways to encourage stronger collaboration between archaeologists and genetic researchers.     

THE ORIGINS OF RACISM: A CRITIQUE OF THE HISTORY OF IDEAS

This essay has two objectives. First, it seeks to engage critically with contemporary scholarship on the origins of racism through the lens of an older debate centered around the history of ideas. Specifically, it argues that Quentin Skinner's influential critique of the history of ideas can help identify the pitfalls of our current fascination with the origins of racism—most particularly when such origins are traced back to antiquity and the European pre- and early modern periods. In pursuing its second objective, the essay turns from histories cataloguing ancient, medieval, and early modern racisms to objections leveled, in these same literatures, against scholarship defending the modernity of race. The defense of a premodern origin to race is, I argue, not just a historical argument but a contemporary politics embedded in a narrative of continuity that insists on the relevance of the medieval past to the racial configurations of our current moment. Rather than demonstrating continuity and sameness, this essay seeks to draw attention to alternative modes of historicizing that are more attentive to the alterity of the past.     

The late adoption of cattle and pig husbandry in Neolithic Central Turkey

This paper summarizes and interprets zooarchaeological evidence for cattle and pig domestication in Neolithic Central Anatolia. Biometric and demographic data indicate that domestic cattle first appear in the region in the late seventh millennium cal BC while domestic pigs are not evident until the mid fifth millennium. This places the origins of cattle and pig husbandry in Central Anatolia considerably later than in neighboring regions. Reasons for this delay in the spread of productive animal husbandry practices are explored.     

Examining histology to identify burned bone

Early research suggests that examination of the microscopic internal structure is a valid method for distinguishing burned from unburned bone in the archaeological record. This study compares burned and unburned modern bones with archaeological bones from Sibudu Cave (ca. 60,000 years ago) and Cave of Hearths (over 200,000 years ago) to more fully describe the heat-induced histological changes to bone. We also explore the effects of diagenesis on those changes to determine if histological evidence of burning preserves through fossilisation and diagenetic processes and can be successfully used to identify ancient burning. Application of this technique can help in addressing various issues, including the origins of controlled use of fire and understanding animal butchery and disposal.     

World-Systems Analysis and Archaeology: Continuing the Dialogue

Many archaeologists have used world-systems analysis in precapitalist settings. Some have criticized it; others have dismissed it out of hand. Critiques include that it was developed for the “modern” world, that it is overly economistic, that it neglects individual actors, and that it inappropriately uses modern analyses in ancient settings. Although there is some validity to these charges when applied to Wallerstein’s original formulation, most are misdirected. The critiques are rooted in inattention to the last three decades of work on world-systems, especially modifications made with the explicit intention to make world-systems analysis useful in precapitalist settings. Newer comparative versions of world-systems analysis were initially developed to better understand the evolution of world-systems that gave rise to the modern world-system. These new advances are useful for the study of interregional interactions and long-term development. Archaeologists are well placed to contribute to the further development of world-systems analysis; they can shed light on ancient world-systemic processes and the origins of the modern world-system, provide empirical backing for hypotheses, and raise new theoretical and empirical questions.     

Genes, language, and culture: an example from the tarim basin

Summary. The Tarim Basin ‘mummies’ of western China continue to fascinate scholars and the general public alike due to their ‘Caucasoid’ features, well‐preserved material culture, and putative ‘European’ origins. However, there have been some uncritical efforts to link these archaeological cultures to those of other ancient Eurasian groups (e.g. the Celts) by applying syllogistic reasoning to multi‐disciplinary evidence. In an attempt to provide a more cautious synthesis of the prehistory of the Tarim Basin, this paper will briefly summarize the archaeological, physical, and linguistic evidence that has been used to model human settlement of this region. These data will then be related to recent molecular anthropology research on modern populations of Central Asia, focusing especially on the Uighur in relation to their neighbours. While the genetic history of the modern peoples of a particular region is not necessarily related to their prehistoric antecedents, it is argued that the Tarim Basin experienced a surprising cultural and biological continuity despite immigration from both east and west into Xinjiang Province. This conclusion has a number of possible political ramifications in the present day that must be addressed in future literature on the subject.     

Introduction

How does the study of the ancient Mediterranean contribute to the writing of the history of gender? From the nineteenth century onwards, much modern theorizing about the origins, development and logic of marriage, the family, religion, property, class, subjectivity and sexuality grew out of analyses of current cultures. This Special Issue returns to a direct encounter with those ancient cultures, and the introduction offers an overview of its concerns and how they interact with and contribute to contemporary debates about gender, the body and history (both ancient and modern).     

Using Pyrotechnology: Fire-related Features and Activities with a Focus on the African Middle Stone Age

Pyrotechnology was important in prehistory and has been a research topic for decades, in particular, the origins of controlled and habitual use of fire. The earliest putative evidence of fire use is from the African sites of Swartkrans (1,500,000–1,000,000 years ago) and Koobi Fora (1,500,000 years ago). In contrast, researchers working with European sites debate whether habitual use of fire occurred before 400,000 years ago. This paper provides a brief introduction to early fire use and then focuses on the African Middle Stone Age. Published evidence on fire use is available for 34 sites in southern Africa. Combustion features yield much evidence about human behavior, not only in regard to technical skills but also concerning social activities. Several activities using fire, symbolic behavior, spatial structuring, and group size in the Middle Stone Age are inferred from bone and lithic data, ash discard, site maintenance, and hearth size. The current status of knowledge on Middle Stone Age pyrotechnology demonstrates the benefits of applying new methodological approaches, facilitates comparisons with earlier and later archaeological periods, and is an important reminder of the benefits of a multidisciplinary approach.     

The Uncertain Origins of Mesoamerican Turkey Domestication

The turkey (Meleagris gallopavo) is the only domesticated vertebrate to originate from North America. Accurate reconstructions of the timing, location, and process of its domestication are thus critical for understanding the domestication process in the ancient Americas. A substantial amount of recent research has been devoted to understanding turkey domestication in the American Southwest, but comparatively little research has been conducted on the subject in Mesoamerica, despite the fact that all modern domestic turkeys descend from birds originally domesticated in Mexico during pre-colonial times. To address this disparity, we have conducted a review of the available literature on early turkeys in the archaeological record of Mesoamerica. We evaluate the evidence in terms of its accuracy and use this evaluation as a stepping off point for suggesting potential avenues of future research. Although the lack of available data from Mesoamerica currently precludes detailed cross-cultural comparisons, we briefly compare the origins and intensification of turkey rearing in Mesoamerica with the American Southwest to generate more dialogue among researchers independently studying the topic in these two distinct but interconnected cultural regions.     

“They Laid Planks ‘Crost the Coffins”: The African Origin of Grave Vaulting in the United States

Grave vaulting, a vernacular burial form common in nineteenth and early twentieth century America, consists of a simple primary grave shaft at the bottom of which is dug a smaller secondary shaft or niche within which the body or coffin is placed. Typically loose boards are then placed over the secondary shaft to offer protection from the soil coming into direct contact with the body or burial container. This tradition is documented through historical accounts and hundreds of excavated graves through a survey of 86 historic cemetery investigations. Although its cultural origins have been previously unknown, this study argues that the vaulted burial form in the United States is likely of African origin. An extensive ethnological survey of historical and modern cultures throughout the continent of Africa, from 1602 to the mid twentieth century, documents both the vaulted grave form and its variations. Correlating this African cultural practice to its use in the United States demonstrates a hitherto unrecognized creolization of Euroamerican mortuary tradition with African roots, and its corollary, the retention of an African mortuary tradition by those of African descent.     

Fossils,Hunters, and Controversies: Exploring Primate Evolution

The study of primate evolution opens a fascinating window onto the varied adaptations, behaviors, and origins of our closest relatives and therefore ourselves. Four books reviewed give different perspectives on the primate fossil record and cover diverse time periods, from the Eocene to the Pleistocene. Four major themes are explored in this article: defining “primatehood” and classifying primates, comparative approaches, reconstructing behavior and ecology, and the importance of non-fossil data. Together, the books show that the study of ancient and modern primates is rooted firmly in anthropology, sharing with other sub-disciplines fundamental aims like classification and relying on a comparative approach.     

A novel method for integrated age and sex determination from archaeological cattle mandibles

Analysis of ancient cattle husbandry is compromised by the need for conventional analysis of sex and age at death to use different elements of the skeleton, usually from different individuals. We demonstrate a technique using aDNA acquired from cattle mandibles and combined with age-at-death estimation based on dental eruption in the same specimens. Application to small sample groups from two sites in Na h-Eileanan Siar (the Scottish Western Isles) show a high success rate, and demonstrates the potential for a more nuanced interpretation of ancient cattle husbandry.