Hadza

The prime-adult-dominated mortality profile of large bovids in the 1.8 Ma FLK Zinj assemblage, Olduvai Gorge, Tanzania, was recently attributed to ambush hunting by early Homo (Bunn, H.T., Pickering, T.R. 2010. Quat. Res. 74, 395e404). We now investigate a logical follow-up question: is enough known about the causes and pervasiveness of prime-adult-dominated mortality profiles (defined as >70% prime adults) from modern ecosystems and from archaeological sites to warrant their attribution solely to hominin hunting? Besides hominin hunting, three methods of scavenging could have provided the large bovids butchered at FLK Zinj: first-access scavenging from non-predator-related accidents; late-access passive scavenging from lion (or other) kills; early-access aggressive scavenging from lion (or other) kills. We present new data on hunted prey from Hadza bow hunting (e.g., N ¼ 50 impala; N ¼ 18 greater kudu) near Lake Eyasi, Tanzania, and from San bow hunting (N ¼ 13 gemsbok) in the Kalahari Desert, Botswana, documenting non-selective, living-structure profiles. We present new data on drowned wildebeest (N ¼ 175) from Lake Masek, in the Serengeti, documenting many prime adults but also a significantly high percentage of old adults, unlike the profile at FLK Zinj. We also examine mortality profiles from modern African lions and from Old World Pleistocene archaeological sites, revealing that while prime-dominated profiles are present in some archaeological assemblages, particularly some Late Pleistocene European sites involving cervids, they are not documented from lion or other larger carnivore predation; moreover, living-structure profiles with prime adults representing w50e60% of prey are common, particularly in African archaeological assemblages involving bovids hunted by humans. Although taphonomic bias, prey socioecology, and season of death may all influence mortality profiles, prime-dominated profiles require careful evaluation. The prime-dominated profile at FLK Zinj is significantly different from profiles formed by the three scavenging methods, which likely indicates hunting by Early Pleistocene Homo.

Khoi-san and Hadza peoples of southern Africa: The Khoekhoen people have an “Indigenous nomadic pastoralist culture,” and the San people have an “Indigenous hunter-gatherer culture,” which is one of the oldest surviving cultures of the region. The Hadza people, who have an “indigenous hunter-gatherer culture,” were a pre-Bantu expansion culture not closely related to Khoisan speakers.

“Many Khoesān peoples are the descendants of a very early dispersal of anatomically modern humans to Southern Africa before 150,000 years ago. (However, see below for recent work supporting a multi-regional hypothesis that suggests the Khoisan may be a source population for anatomically modern humans.) Their languages show a vague typological similarity, largely confined to the prevalence of click consonants. They are not verifiably derived from a common proto-language, but are today split into at least three separate and unrelated language families (Khoe-Kwadi, Tuu and Kxʼa). It has been suggested that the Khoekhoe may represent Late Stone Age arrivals to Southern Africa, possibly displaced by Bantu expansion reaching the area roughly between 1,500 and 2,000 years ago.”

Reconstruction of extinct hominin diets is currently a topic of much interest and debate, facilitated by new methods such as the analysis of dental calculus. It has been proposed, based on chemical analyses of calculus, that Neanderthals self-medicated, yet this conclusion has been questioned. Gastrophagy has been suggested as an alternative explanation for the Neanderthal data, based on ethnographic analogies, which show this practice to have been widespread in traditional extant Homo sapiens diets, and nutritional evidence for its benefits at high latitudes. Here we expand the discussion of the potential importance of gastrophagy in human evolution by considering its role for an extant group of tropical foragers, the Hadza of Tanzania, and questioning its role in the diets of extinct tropical hominin species. Gastrophagy is frequently practiced among the Hadza and adult men in particular consume substantial, seasonally variable, amounts of prey guts. In addition to the important fact that gastrophagy is not a rare event, this demographic information may be useful in interpreting evidence from archaeological samples. The consumption of semi-digested chyme would have allowed extinct hominins to gain calories from plant sources without the cost of digesting them, possibly contributing to the encephalisation and shrinking of the gut in genus Homo. As an easy to process food-source, chyme could have likewise been an important food source for the old and the young, potentially playing a part in reducing inter-birth intervals and increasing reproductive success in our lineage. Thus gastrophagy may have played a key part in human evolution and its potentially confounding signal should be considered in future dietary reconstructions.

In recent years, the field of immunology has been revolutionized by the growing understanding of the fundamental role of microbiota in the immune system function. The immune system has evolved to maintain a symbiotic relationship with these microbes. The aim of our study was to know in depth the uncharacterized metagenome of the Buenos Aires (BA) city population and its metropolitan area, being the second most populated agglomeration in the southern hemisphere. For this purpose, we evaluated 30 individuals (age: 35.23 ± 8.26 years and BMI: 23.91 ± 3.4 kg/m 2), from the general population of BA. The hypervariable regions V3-V4 of the bacterial 16S gene was sequenced by MiSeq-Illumina system, obtaining 47526 ± 4718 sequences/sample. The dominant phyla were Bacteroidetes, Firmicutes, Proteobacteria, Verrucomicrobia, and Actinobacteria. Additionally, we compared the microbiota of BA with other westernized populations (Santiago de Chile, Rosario-Argentina, United States-Human-microbiomeproject, Bologna-Italy) and the Hadza population of hunter-gatherers. The unweighted UniFrac clustered together all westernized populations, leaving the hunter-gatherer population from Hadza out. In particular, Santiago de Chile's population turns out to be the closest to BA's, principally due to the presence of Verrucomicrobiales of the genus Akkermansia. These microorganisms have been proposed as a hallmark of a healthy gut. Finally, westernized populations showed more abundant metabolism related KEEG pathways than hunter-gatherers, including carbohydrate metabolism (amino sugar and nucleotide sugar metabolism), amino acid metabolism (alanine, aspartate and glutamate metabolism), lipid metabolism, biosynthesis of secondary metabolites, and sulfur metabolism. These findings contribute to promote research and comparison of the microbiome in different human populations, in order to develop more efficient therapeutic strategies for the restoration of a healthy dialogue between host and environment.

John Rashford is Professor Emeritus of Anthropology at the College of Charleston in South Carolina. Much of his research has focused on the ethnobotany of the Caribbean and over the years he has published several papers on the occurrence and uses of African baobabs (Adansonia digitata) both there and elsewhere, including an early (1987) article on baobabs and seasonal hunger among the San peoples of southern Africa. Now he has turned his interest in Africa’s most iconic tree into a full-length book that sets out to show how it may have played an important role in early human evolution on the continent. He does so by documenting the multiple uses of the baobab among the Hadza people of north-central Tanzania and projecting their practice into the distant past. While recognising that modern circumstances are very different, “Hadza are theorized to be similar to early hominins [sic] with respect to foraging on the African savanna” (p. xi), and so suitable as a model for palaeontological reconstruction. If the baobab can be shown to be their “tree of life”, then it can be presumed to have had the same status in the early history of humanity – or so Rashford argues. [...]

Conventional wisdom holds that a decline in oral health accompanies the transition from hunting and gathering to agriculture, given increased consumption of carbohydrates. This widely touted example of the mismatch between our biology and modern lifestyle has been intuited largely from the bioarchaeological record of the Neolithic Revolution in the New World. Recent studies of other populations have, however, challenged the universality of this assertion. Here, we present the first comprehensive study of oral health among a living population in transition from the bush to village life, the Hadza hunter-gatherers of Tanzania, to test the hypothesis that the shift from foraging to farming, or agricultural intensification, inevitably leads to increased periodontal disease, caries, and orthodontic disorders. Our results showed that women living in villages consuming a mostly agricultural diet exhibited more caries and periodontal disease than those living in the bush consuming a mostly wildfood diet. Furthermore, men living in the bush consuming mostly a wild-food diet had more than those living in the village consuming a mostly agricultural diet. These findings are explained by the high incidence of maize consumption in village settings, along with previously recognized variation in rate of caries between men and women. The unexpected discovery of high caries incidences for men in the bush is likely explained by heavy reliance on honey, and perhaps differential access to tobacco and marijuana. These data support the notions that mechanisms of cariogenesis are multifactorial and that the relationships between oral health and the shift from a predominantly wild-food diet to one dominated by cultigens are nuanced.

It is widely believed that there is strong association between physiological stress and an individual's social status in their social hierarchy. This has been claimed for all humans cross-culturally, as well as in nonhuman animals living in social groups. However, the relationship between stress and social status has not been explored in any egalitarian hunter-gatherer society; it is also under investigated in exclusively female social groups. Most of human evolutionary history was spent in small, mobile foraging bands of huntergatherers with little economic differentiationegalitarian societies. We analysed women's hair cortisol concentration along with two domains of women's social status (foraging reputation and popularity) in an egalitarian hunter-gatherer society, the Hadza. We hypothesized that higher social status would be associated with lower physiological indicators of stress in these women. Surprisingly, we did not find any association between either foraging reputation or popularity and hair cortisol concentration. The results of our study suggest that social status is not a consistent or powerful predictor of physiological stress levels in women in an egalitarian social structure. This challenges the notion that social status has the same basic physiological implications across all demographics and in all human societies.

Background Chronic diarrhea is a common disease causing morbidity and mortality of captive rhesus macaques (RMs, Macaca mulatta). Chronic diarrhea in RMs is typically characterized by long-term diarrhea and a weak response to antibiotic treatment. Diarrhea is also a common disease in humans and can cause death. However, the etiology of about half of diarrheal cases of humans is still unclear. Therefore, we performed shotgun metagenomic sequencing to characterize the differences in the gut microbiome and resistome of chronic diarrhea RMs and asymptomatic individuals. Results Our results showed Lactobacillus spp. (mainly L. johnsonii, L. reuteri and L. amylovorus) were significantly depleted in chronic diarrhea RM guts compared to asymptomatic individuals (5.2 vs 42.4%). Functional annotation of genes suggested these Lactobacillus spp. carried genes involved in the adhesion of intestinal epithelial cells and production of bacteriocin. Chronic diarrhea RM guts also had a significantly ...

In this paper, we address some of the challenges and opportunities of conducting international research in psychology. We examine issues that arise from working in contexts that differ substantially from those in which most psychological research is still conducted. We take our experiences with Tanzanian and Namibian (post-) hunter-gatherers as a starting point for discussing regulatory and ethical issues. We have experienced a highly structured and regulated approach to research in Tanzania and a much less regulated situation in Namibia. We compare both and discuss conflicts that arise from differing demands of national regulations (or lack thereof) and funders or home institutions in the Global North. We focus on the special point of establishing informed consent. While the people we have worked with are not only often illiterate, they also have a very different background of experiences, which means that the translation of consent procedures is not sufficient, and other considerations need to come into play. We discuss cultural characteristics of hunter-gatherer groups, particularly norms related to individual autonomy, that convince us that our participants have the ability to consent nevertheless and compare this with the situation in other groups that we have worked with (for example, Indian farmers). However, we also reflect on ethical choices that become relevant in a digitalized world, particularly when working with children. We argue that an understanding of cultural models and norms is necessary to design and conduct meaningful psychological research and enable us to interpret findings correctly. We suggest to include communities that researchers work with into the research process wherever possible, to aim for long-term commitment and to cultivate an ethical stance regarding research, already in students that become involved in research projects.

Hunting wild birds for food, ornaments, and business purposes has been a longstanding practice in the Chemba district, and local communities consider the wild bird business as the "gold" that transforms their livelihoods. This article builds on a livelihood framework to document livelihoods gained from wild bird business across livelihood capitals at the household level. We conducted a 146-household survey, 16 interviews, 4 focus group discussions, and observations to gain field information that helped to develop the article. Results show that Quelea quelea species are the most targeted wild birds; however, other, non-targeted species were harvested in the study villages. There are significant livelihood contributions among wild bird hunters, processors, and sellers, with disproportionate benefits across the livelihood assets in the study area. The mean weekly income from selling live wild birds varies across the villages and ranges between USD 13.5 and 18.48. A significant difference is observed when comparing the income gained from selling roasted wild bird meat and selling live birds. The most commonly acquired physical assets are related to buying consumables to meet family needs, followed by buying livestock and bricks for the construction of houses. Those who engage in the wild bird business also diversify their livelihood strategies by engaging in farming and non-farming activities. We argue that, despite the different livelihoods gained from hunting and selling live or roasted wild birds' meat, the practice in the study area should be regulated to ensure that the health of wild bird consumers and the ecological functions of the targeted wild bird species are not compromised. The article provides socio-ecological information that is useful in designing sustainable methods for harvesting Quelea quelea while protecting other bird species in central Tanzania and elsewhere with similar experiences.

The study of human origins is one of the most fascinating branches of anthropology. Yet it has rarely been considered by social or cultural anthropologists, who represent the largest subfield of the discipline. In this powerful study Alan Barnard aims to bridge this gap. Barnard argues that social anthropological theory has much to contribute to our understanding of human evolution, including changes in technology, subsistence and exchange, family and kinship, as well as to the study of language, art, ritual and belief. This book places social anthropology in the context of a widely-conceived constellation of anthropological sciences. It incorporates recent findings in many fields, including primate studies, archaeology, linguistics and human genetics. In clear, accessible style Barnard addresses the fundamental questions surrounding the evolution of human society and the prehistory of culture, suggesting a new direction for social anthropology that will open up debate across the di...

Back to Kinship III is the third Special Issue of the e-journal, Structure and Dynamics sponsored by the group, Kinship Circle. Each issue is dedicated to current kinship research. The first two issues have both been very successful, as shown by the number of downloads. Back to Kinship I (Read and El Guindi 2013) has had a total of 2,696 download since it was published in 2013, which is an average of 207 downloads per article and an average of 385 downloads per year. Back to Kinship II (El Guindi and Read 2016) has had a total of 2,405 downloads since it was publication in 2016, which is an average of 172 downloads per article and an average of 601 downloads per year. These numbers reflect the ongoing intense interest in kinship research worldwide. These two issues of Back to Kinship focus on the challenges facing kinship research that began to appear in the 1970s, and on the impact these challenges have had on kinship research. As El Guindi (2020:42) puts it in her just published book, ongoing kinship research has confronted "trivializing or dismissive attempts and unfounded claims which diminish the importance of the kinship phenomenon." El Guindi continues: "The history of anthropology has shown that kinship knowledge is integral to the cultural knowledge humans acquire and generate, about what constitutes 'social universe' and what it means to be a relative. A complex notion of society and culture is unique to humans… and is irreducible to a simplistic transmission of traits or an assumed overarching tradition of nurture" (p. 42). She goes on to describe how kinship study today "involves revisiting old issues with fresh data or generating new models to provide new insights while creatively building bridges with different disciplines which would enhance the conceptualization of kinship" (p. 42).

Back to Kinship III is the third Special Issue of the e-journal, Structure and Dynamics sponsored by the group, Kinship Circle. Each issue is dedicated to current kinship research. The first two issues have both been very successful, as shown by the number of downloads. Back to Kinship I (Read and El Guindi 2013) has had a total of 2,696 download since it was published in 2013, which is an average of 207 downloads per article and an average of 385 downloads per year. Back to Kinship II (El Guindi and Read 2016) has had a total of 2,405 downloads since it was publication in 2016, which is an average of 172 downloads per article and an average of 601 downloads per year. These numbers reflect the ongoing intense interest in kinship research worldwide. These two issues of Back to Kinship focus on the challenges facing kinship research that began to appear in the 1970s, and on the impact these challenges have had on kinship research. As El Guindi (2020:42) puts it in her just published book, ongoing kinship research has confronted "trivializing or dismissive attempts and unfounded claims which diminish the importance of the kinship phenomenon." El Guindi continues: "The history of anthropology has shown that kinship knowledge is integral to the cultural knowledge humans acquire and generate, about what constitutes 'social universe' and what it means to be a relative. A complex notion of society and culture is unique to humans… and is irreducible to a simplistic transmission of traits or an assumed overarching tradition of nurture" (p. 42). She goes on to describe how kinship study today "involves revisiting old issues with fresh data or generating new models to provide new insights while creatively building bridges with different disciplines which would enhance the conceptualization of kinship" (p. 42).

The ‘challenge hypothesis’ posits that testosterone facilitates reproductive effort (investment in male–male competition and mate-seeking) at the expense of parenting effort (investment in offspring and mates). Multiple studies, primarily in North America, have shown that men in committed relationships, fathers, or both maintain lower levels of testosterone than unpaired men. Data from non-western populations, however, show inconsistent results. We hypothesized that much of this cross-cultural variation can be attributed to differential investment in mating versus parenting effort, even among married fathers. Here, we directly test this idea by comparing two neighbouring Tanzanian groups that exhibit divergent styles of paternal involvement: Hadza foragers and Datoga pastoralists. We predicted that high levels of paternal care by Hadza fathers would be associated with decreased testosterone in comparison with non-fathers, and that no such difference between fathers and non-fathers w...

Studies of the gut microbiome variation among human populations revealed the existence of robust compositional and functional layouts matching the three subsistence strategies that describe a trajectory of changes across our recent evolutionary history: hunting and gathering, rural agriculture, and urban post-industrialized agriculture. In particular, beside the overall reduction of ecosystem diversity, the gut microbiome of Western industrial populations is typically characterized by the loss of Treponema and the acquisition of Bifidobacterium as an abundant inhabitant of the post-weaning gut microbial ecosystem. In order to advance the hypothesis about the possible adaptive nature of this exchange, here we explore specific functional attributes that correspond to the mutually exclusive presence of Treponema and Bifidobacterium using publically available gut metagenomic data from Hadza hunter-gatherers and urban industrial Italians. According to our findings, Bifidobacterium provides the enteric ecosystem with a diverse panel of saccharolytic functions, well suited to the array of gluco-and galacto-based saccharides that abound in the Western diet. On the other hand, the metagenomic functions assigned to Treponema are more predictive of a capacity to incorporate complex polysaccharides, such as those found in unrefined plant foods, which are consistently incorporated in the Hadza diet. Finally, unlike Treponema, the Bifidobacterium metagenome functions include genes that permit the establishment of microbe-host immunological cross-talk, suggesting recent co-evolutionary events between the human immune system and Bifidobacterium that are adaptive in the context of agricultural subsistence and sedentary societies.

Background While indoor microbiomes impact our health and well-being, much remains unknown about taxonomic and functional transitions that occur in human-derived microbial communities once they are transferred away from human hosts. Toothbrushes are a model to investigate the potential response of oral-derived microbiota to conditions of the built environment. Here, we characterize metagenomes of toothbrushes from 34 subjects to define the toothbrush microbiome and resistome and possible influential factors. Results Toothbrush microbiomes often comprised a dominant subset of human oral taxa and less abundant or site-specific environmental strains. Although toothbrushes contained lower taxonomic diversity than oral-associated counterparts (determined by comparison with the Human Microbiome Project), they had relatively broader antimicrobial resistance gene (ARG) profiles. Toothbrush resistomes were enriched with a variety of ARGs, notably those conferring multidrug efflux and putativ...

Multidrug-resistant bacteria represent a substantial global burden for human health, potentially fuelled by migration waves: in 2015, 476,649 refugees applied for asylum in Germany mostly as a result of the Syrian crisis. In Arabic countries, multiresistant bacteria cause significant problems for healthcare systems. Currently, no data exist describing antibiotic resistances in healthy refugees. Here, we assess the microbial landscape and presence of antibiotic resistance genes (ARGs) in refugees and German controls. To achieve this, a systematic study was conducted in 500 consecutive refugees, mainly from Syria, Iraq, and Afghanistan and 100 German controls. Stool samples were subjected to PCR-based quantification of 42 most relevant ARGs, 16S ribosomal RNA gene sequencing-based microbiota analysis, and culture-based validation of multidrug-resistant microorganisms. The fecal microbiota of refugees is substantially different from that of resident Germans. Three categories of resista...

Back to Kinship III is the third Special Issue of the e-journal, Structure and Dynamics sponsored by the group, Kinship Circle. Each issue is dedicated to current kinship research. The first two issues have both been very successful, as shown by the number of downloads. Back to Kinship I (Read and El Guindi 2013) has had a total of 2,696 download since it was published in 2013, which is an average of 207 downloads per article and an average of 385 downloads per year. Back to Kinship II (El Guindi and Read 2016) has had a total of 2,405 downloads since it was publication in 2016, which is an average of 172 downloads per article and an average of 601 downloads per year. These numbers reflect the ongoing intense interest in kinship research worldwide. These two issues of Back to Kinship focus on the challenges facing kinship research that began to appear in the 1970s, and on the impact these challenges have had on kinship research. As El Guindi (2020:42) puts it in her just published book, ongoing kinship research has confronted "trivializing or dismissive attempts and unfounded claims which diminish the importance of the kinship phenomenon." El Guindi continues: "The history of anthropology has shown that kinship knowledge is integral to the cultural knowledge humans acquire and generate, about what constitutes 'social universe' and what it means to be a relative. A complex notion of society and culture is unique to humans… and is irreducible to a simplistic transmission of traits or an assumed overarching tradition of nurture" (p. 42). She goes on to describe how kinship study today "involves revisiting old issues with fresh data or generating new models to provide new insights while creatively building bridges with different disciplines which would enhance the conceptualization of kinship" (p. 42).

The skin functions as the primary interface between the human body and the external environment. To understand how the microbiome varies within urban mass transit and influences the skin microbiota, we profiled the human palm microbiome after contact with handrails within the Hong Kong Mass Transit Railway (MTR) system. Intraday sampling time was identified as the primary determinant of the variation and recurrence of the community composition, whereas human-associated species and clinically important antibiotic resistance genes (ARGs) were captured as p.m. signatures. Line-specific signatures were notably correlated with line-specific environmental exposures and city characteristics. The sole cross-border line appeared as an outlier in most analyses and showed high relative abundance and a significant intraday increment of clinically important ARGs (24.1%), suggesting potential cross-border ARG transmission, especially for tetracycline and vancomycin resistance. Our study provides ...

By means of a recently developed non-invasive ex vivo minimal model based on the interaction of the human enterocyte-like HT29 cell line and fecal slurries, we explored the enterocyte-associated microbiome of 21 Hadza hunter-gatherers and nine urban living Italians. Though reductionist, this model allows inferring the microbiota structural and functional arrangement as it interacts with enterocytes. Microbial suspensions obtained from Hadza or Italian stools were first evaluated for structural integrity by high resolution-scanning electron microscopy and co-incubated with HT29 cell monolayers. The enterocyte adherent microbiota fraction was then characterized by 16S rRNA gene sequencing and predictive functional profiling using PICRUSt. Compared to Italians, the Hadza enterocyte-associated microbiome was characterized by a greater amount of adhesive microorganisms with pathogenic potential, such as Proteobacteria, Erysipelotrichaceae, Enterococcus, Clostridium and Sarcina. These compositional characteristics were reflected in a functional enrichment in membrane transport, signal transduction, signaling molecules and interaction. Our results depict a new interesting mutualistic configuration of the enterocyte-associated microbiome in Hadza, stressing the importance of microbe-host interaction at the mucosal surface along the course of human evolution.

Scotland and Ireland. June-July. Shetland and Orkney Islands; birding on North Sea coast below Aberdeen. Cairngorms; Conference and tour in Ireland.. Yellowstone, teaching Environmental Ethics;Absaroka/Beartooths, backpacking, Bob Marshal Wilderness, trip aborted by fires, riade out over Gateway Pass, and Crazy

List of figures page viii List of tables ix Preface xi 1 Introduction 1 2 If chimps could talk 18 3 Fossils and what they tell us 33 4 Group size and settlement 53 5 Teaching, sharing and exchange 70 6 Origins of language and symbolism 90 7 Elementary structures of kinship 8 A new synthesis 9 Conclusions Glossary References Index viii 1 Social anthropology is a discipline largely missing from the study of human origins. Until now, the discipline has sidelined itself. Yet its central concerns with notions like society, culture and cross-cultural comparison make it of the utmost relevance for understanding the origins of human social life, and relevant too as an aid for speculation on the kinds of society our ancestors inhabited. Like archaeologists, social anthropologists can dig backwards through layers of time, into the origins of language, symbolism, ritual, kinship and the ethics and politics of reciprocity. When did human origins begin? That is a trick question. Of course, human origins began when humanity began, but in another sense human origins began when origins became an intellectual issue. There is no real history of engagement between social anthropology and early humanity, so one must be created here. Social anthropology's ancestral disciplines, like moral philosophy and jurisprudence, natural history and antiquarianism, travelogue and philology, all fed into post-medieval developments in building a picture of 'early man'. Yet, as I have implied, social anthropology proper has been absent. Since the days of Franz Boas at the dawn of the twentieth century, the study of human origins has been seen instead as the preserve of biological or physical anthropology. While not wishing to encroach too deeply into biological territory, in this book I want to carve out within social anthropology a new subdiscipline. I see this as a subdiscipline that touches on the biological and makes full use too of a century and a half of social anthropology-its accumulated experience and especially some of its more recent, and relevant, developments. Scientific interest in human origins in fact has quite a long history. Seventeenth-century European thinkers such as Hobbes and Locke speculated on the 'natural' condition of 'man', and its relation to the earliest forms of human society. Eighteenth-century thinkers continued this tradition, and archaeological and linguistic concerns were added at that time. In the nineteenth century, the theory or theories of evolution, as well as important fossil finds like the first Neanderthal in 1857 and Pithecanthropus in 1891, provided much added impetus. Indeed, the later A short history of human origins The seventeenth century Archaeology, or more accurately its predecessor, antiquarian studies, emerged as an amateur pursuit in the seventeenth century. Even before that, in the early sixteenth century, Italian geologists had speculated on the idea of stone tools as antecedents of iron ones (Trigger 1989: 53). However, the great social thinkers like Grotius, Hobbes, Pufendorf and even Locke were not among those who had such notions. Social theory in the seventeenth century seemed almost completely oblivious to such insights and to the growing interest, throughout much of Europe, in early technology and in comparisons between Europeans of the past and the inhabitants of Africa or the Americas at the time. In retrospect, Darwinian theory, though, might as easily be contrasted to Monboddo's. Far from being a 'forerunner of Darwin', as is often said, Monboddo embodies an otherwise never-fully realized eighteenth-century vision which is the antithesis of Darwin. If in probing the boundaries of 'man' Monboddo defined the 'Orang Outang' as part of the category, Darwin did the opposite: he defined 'man' as an 'ape' (figure 1.1). Linnaeus came close to seeing both sides of the problem that would haunt Darwin when (later Lord Avebury), were also prominent in archaeology. Among other twists of fate, the foremost ethnologist of the late nineteenth century, Sir Edward Burnett Tylor, met Henry Christie while travelling in Cuba in 1856, and Christie persuaded him to accompany him to Mexico. Christie, like Lubbock a banker, ethnologist and archaeologist, was

The Hadza are one of the last true hunter-gatherers in the world, and there is a great deal we can learn about early human behavior and culture by studying their modern-day ways of life. In this brief paper, we will look at an overview of some key points of their culture, and how they relate to others today.

We assessed the subsistence-related variation of the human gut microbiome at a fine resolution for two of the main dimensions of microbiome variation, age and geography. For this, we investigated the fecal microbiome and metabolome in rural Bassa and urbanized individuals from Nigeria, including infants, and compared data with worldwide populations practicing varying subsistence. Our data highlight specific microbiome traits that are progressively lost with urbanization, such as the dominance of pristine fiber degraders and the low inter-individual variation. For the Bassa, this last feature is the result of their subsistence-related practices favoring microbial dispersal, such as their extensive environmental contact and the usage of untreated waters from the Usuma River. The high degree of microbial dispersal observed in the Bassa meta-community nullifies the differences between infant and adult intestinal ecosystems, suggesting that the infant-type microbiome in Western populatio...

Highlights d BaAka hunter-gatherers and Bantu agriculturalists have distinct gut microbiomes d Microbiome profiles follow a gradient that reflects the degree of traditional lifestyle d Comparisons with US Americans show western-like microbiome patterns in the Bantu d Westernization drives sugar/xenobiotic processing and loss of traditional microbes

In recent years, the field of immunology has been revolutionized by the growing understanding of the fundamental role of microbiota in the immune system function. The immune system has evolved to maintain a symbiotic relationship with these microbes. The aim of our study was to know in depth the uncharacterized metagenome of the Buenos Aires (BA) city population and its metropolitan area, being the second most populated agglomeration in the southern hemisphere. For this purpose, we evaluated 30 individuals (age: 35.23 ± 8.26 years and BMI: 23.91 ± 3.4 kg/m 2), from the general population of BA. The hypervariable regions V3-V4 of the bacterial 16S gene was sequenced by MiSeq-Illumina system, obtaining 47526 ± 4718 sequences/sample. The dominant phyla were Bacteroidetes, Firmicutes, Proteobacteria, Verrucomicrobia, and Actinobacteria. Additionally, we compared the microbiota of BA with other westernized populations (Santiago de Chile, Rosario-Argentina, United States-Human-microbiomeproject, Bologna-Italy) and the Hadza population of hunter-gatherers. The unweighted UniFrac clustered together all westernized populations, leaving the hunter-gatherer population from Hadza out. In particular, Santiago de Chile's population turns out to be the closest to BA's, principally due to the presence of Verrucomicrobiales of the genus Akkermansia. These microorganisms have been proposed as a hallmark of a healthy gut. Finally, westernized populations showed more abundant metabolism related KEEG pathways than hunter-gatherers, including carbohydrate metabolism (amino sugar and nucleotide sugar metabolism), amino acid metabolism (alanine, aspartate and glutamate metabolism), lipid metabolism, biosynthesis of secondary metabolites, and sulfur metabolism. These findings contribute to promote research and comparison of the microbiome in different human populations, in order to develop more efficient therapeutic strategies for the restoration of a healthy dialogue between host and environment.

It is widely believed that there is strong association between physiological stress and an individual's social status in their social hierarchy. This has been claimed for all humans cross-culturally, as well as in non-human animals living in social groups. However, the relationship between stress and social status has not been explored in any egalitarian hunter-gatherer society; it is also under investigated in exclusively female social groups. Most of human evolutionary history was spent in small, mobile foraging bands of hunter-gatherers with little economic differentiation-egalitarian societies. We analysed women's hair cortisol concentration along with two domains of women's social status (foraging reputation and popularity) in an egalitarian hunter-gatherer society, the Hadza. We hypothesized that higher social status would be associated with lower physiological indicators of stress in these women. Surprisingly, we did not find any association between either foragin...

Highlights d BaAka hunter-gatherers and Bantu agriculturalists have distinct gut microbiomes d Microbiome profiles follow a gradient that reflects the degree of traditional lifestyle d Comparisons with US Americans show western-like microbiome patterns in the Bantu d Westernization drives sugar/xenobiotic processing and loss of traditional microbes

List of figures page viii List of tables ix Preface xi 1 Introduction 1 2 If chimps could talk 18 3 Fossils and what they tell us 33 4 Group size and settlement 53 5 Teaching, sharing and exchange 70 6 Origins of language and symbolism 90 7 Elementary structures of kinship 8 A new synthesis 9 Conclusions Glossary References Index viii 1 Social anthropology is a discipline largely missing from the study of human origins. Until now, the discipline has sidelined itself. Yet its central concerns with notions like society, culture and cross-cultural comparison make it of the utmost relevance for understanding the origins of human social life, and relevant too as an aid for speculation on the kinds of society our ancestors inhabited. Like archaeologists, social anthropologists can dig backwards through layers of time, into the origins of language, symbolism, ritual, kinship and the ethics and politics of reciprocity. When did human origins begin? That is a trick question. Of course, human origins began when humanity began, but in another sense human origins began when origins became an intellectual issue. There is no real history of engagement between social anthropology and early humanity, so one must be created here. Social anthropology's ancestral disciplines, like moral philosophy and jurisprudence, natural history and antiquarianism, travelogue and philology, all fed into post-medieval developments in building a picture of 'early man'. Yet, as I have implied, social anthropology proper has been absent. Since the days of Franz Boas at the dawn of the twentieth century, the study of human origins has been seen instead as the preserve of biological or physical anthropology. While not wishing to encroach too deeply into biological territory, in this book I want to carve out within social anthropology a new subdiscipline. I see this as a subdiscipline that touches on the biological and makes full use too of a century and a half of social anthropology-its accumulated experience and especially some of its more recent, and relevant, developments. Scientific interest in human origins in fact has quite a long history. Seventeenth-century European thinkers such as Hobbes and Locke speculated on the 'natural' condition of 'man', and its relation to the earliest forms of human society. Eighteenth-century thinkers continued this tradition, and archaeological and linguistic concerns were added at that time. In the nineteenth century, the theory or theories of evolution, as well as important fossil finds like the first Neanderthal in 1857 and Pithecanthropus in 1891, provided much added impetus. Indeed, the later A short history of human origins The seventeenth century Archaeology, or more accurately its predecessor, antiquarian studies, emerged as an amateur pursuit in the seventeenth century. Even before that, in the early sixteenth century, Italian geologists had speculated on the idea of stone tools as antecedents of iron ones (Trigger 1989: 53). However, the great social thinkers like Grotius, Hobbes, Pufendorf and even Locke were not among those who had such notions. Social theory in the seventeenth century seemed almost completely oblivious to such insights and to the growing interest, throughout much of Europe, in early technology and in comparisons between Europeans of the past and the inhabitants of Africa or the Americas at the time. In retrospect, Darwinian theory, though, might as easily be contrasted to Monboddo's. Far from being a 'forerunner of Darwin', as is often said, Monboddo embodies an otherwise never-fully realized eighteenth-century vision which is the antithesis of Darwin. If in probing the boundaries of 'man' Monboddo defined the 'Orang Outang' as part of the category, Darwin did the opposite: he defined 'man' as an 'ape' (figure 1.1). Linnaeus came close to seeing both sides of the problem that would haunt Darwin when (later Lord Avebury), were also prominent in archaeology. Among other twists of fate, the foremost ethnologist of the late nineteenth century, Sir Edward Burnett Tylor, met Henry Christie while travelling in Cuba in 1856, and Christie persuaded him to accompany him to Mexico. Christie, like Lubbock a banker, ethnologist and archaeologist, was

In recent years, the field of immunology has been revolutionized by the growing understanding of the fundamental role of microbiota in the immune system function. The immune system has evolved to maintain a symbiotic relationship with these microbes. The aim of our study was to know in depth the uncharacterized metagenome of the Buenos Aires (BA) city population and its metropolitan area, being the second most populated agglomeration in the southern hemisphere. For this purpose, we evaluated 30 individuals (age: 35.23 ± 8.26 years and BMI: 23.91 ± 3.4 kg/m 2), from the general population of BA. The hypervariable regions V3-V4 of the bacterial 16S gene was sequenced by MiSeq-Illumina system, obtaining 47526 ± 4718 sequences/sample. The dominant phyla were Bacteroidetes, Firmicutes, Proteobacteria, Verrucomicrobia, and Actinobacteria. Additionally, we compared the microbiota of BA with other westernized populations (Santiago de Chile, Rosario-Argentina, United States-Human-microbiomeproject, Bologna-Italy) and the Hadza population of hunter-gatherers. The unweighted UniFrac clustered together all westernized populations, leaving the hunter-gatherer population from Hadza out. In particular, Santiago de Chile's population turns out to be the closest to BA's, principally due to the presence of Verrucomicrobiales of the genus Akkermansia. These microorganisms have been proposed as a hallmark of a healthy gut. Finally, westernized populations showed more abundant metabolism related KEEG pathways than hunter-gatherers, including carbohydrate metabolism (amino sugar and nucleotide sugar metabolism), amino acid metabolism (alanine, aspartate and glutamate metabolism), lipid metabolism, biosynthesis of secondary metabolites, and sulfur metabolism. These findings contribute to promote research and comparison of the microbiome in different human populations, in order to develop more efficient therapeutic strategies for the restoration of a healthy dialogue between host and environment.

It is widely believed that there is strong association between physiological stress and an individual's social status in their social hierarchy. This has been claimed for all humans cross-culturally, as well as in nonhuman animals living in social groups. However, the relationship between stress and social status has not been explored in any egalitarian hunter-gatherer society; it is also under investigated in exclusively female social groups. Most of human evolutionary history was spent in small, mobile foraging bands of huntergatherers with little economic differentiationegalitarian societies. We analysed women's hair cortisol concentration along with two domains of women's social status (foraging reputation and popularity) in an egalitarian hunter-gatherer society, the Hadza. We hypothesized that higher social status would be associated with lower physiological indicators of stress in these women. Surprisingly, we did not find any association between either foraging reputation or popularity and hair cortisol concentration. The results of our study suggest that social status is not a consistent or powerful predictor of physiological stress levels in women in an egalitarian social structure. This challenges the notion that social status has the same basic physiological implications across all demographics and in all human societies.

We are not a classic pair-bonded species. We are not a polygamous, tournament species either…. What we are, officially, … is a tragically confused species. (Robert Sapolsky) Robert Sapolsky is spot on with his observations. Studies show that the proportion of mostly monogamous vs promiscuous people is roughly 50:50, with men only having a slightly higher disposition towards promiscuity. Some researchers have interpreted this as two relatively stable evolutionarily stable strategies or bifurcating equilibria. However, there is more to this story. Different equilibria may well be caused by different evolutionary environments. The connection between promiscuity and caddishness may be obvious for us, but it is wellgrounded in life-history strategy (formerly known as r/K-selection). Species with shorter life histories invest more in mating effort than in parenting effort (e.g. rats), whereas it is the other way round with species with longer life histories (e.g. elephants). As far as homo sapiens is concerned, we couldn't be much more K-selected. Most of us take care of our offspring for 20+ years.

Thea Skaanes worked with Hadza in northern Tanzania. She takes us to three specific material objects – what she calls power objects – belonging to individual Hadza women. She argues that these objects cannot be assessed adequately within a discourse of property and socio-economic value. Instead, she reveals how these objects are materializations of social relations, how they are entwined around identity and names, kinship, time, and ritual. The objects are linked to the spirit of women and their kin relations in the past and in the future. Skaanes argues that since there are conceptual intersections between objects and land, it is promising to look at land and places as materializations of social relations too. She illustrates this with the example of various mountains/gods within the Hadza homeland. Drawing on Appadurai (1996), she suggests comprehending land as different ‘scapes’, e.g. cosmoscapes, kinscapes, or transactionscapes, all of which im- ply social relations. Like the objects she analyzes in her chapter, the maps produced should also be inherently multiple, flexible, and shadowy. She imagines a hodological perspective – connecting kinship, places, and time – as a promising way forward. This kind of mapping, in her view, would allow us a look at the land from within, from the point of view of its inhabitants.

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Hunted meat is a cherished food for both bellies and thought among the hunting and gathering Hadza. It is festive, celebrated, and in poetics, it is metaphorically associated with sex. Like sex, it is both ordinary, mundane yet also celebrated and extraordinary.
Unfolding big game hunt and meat-sharing among the Hadza, we find aspects of esotericism in combination with the mundane. “If gifts make friends, friends make gifts”, Marshall Sahlins (1972) wrote. Yet, if we consider the ethics of sharing, we might ask what the means of sharing look like in practice, and what the ends of such transactions are? The Hadza have provided scholars with insights on egalitarian meat-sharing, demand- sharing, immediate-return systems, and how to live a society where accumulation is regarded as anti-social, as indeed unethical. Yet, accumulation occurs with the big game hunt, but why, then, is the surplus shared and not exchanged? With this paper, we ask what relations are established with meat sharing? What are the social and esoteric relations in an ecology of human and non-human persons sharing meat-matter? Sharing meat is profoundly anchored in ethics and with ideas of prosperity, collective regeneration and for carving out a shared future.

Little is still known about the microbiome resulting from the process of mummification of the human gut. In the present study, the gut microbiota, genes associated with metabolism, and putative resistome of Inca and Italian nobility mummies were characterized by using high-throughput sequencing. The Italian nobility mummies exhibited a higher bacterial diversity as compared to the Inca mummies when using 16S ribosomal (rRNA) gene amplicon sequencing, but both groups showed bacterial and fungal taxa when using shotgun metagenomic sequencing that may resemble both the thanatomicrobiome and extant human gut microbiomes. Identification of sequences associated with plants, animals, and carbohydrate-active enzymes (CAZymes) may provide further insights into the dietary habits of Inca and Italian nobility mummies. Putative antibiotic-resistance genes in the Inca and Italian nobility mummies support a human gut resistome prior to the antibiotic therapy era. The higher proportion of putative...

The archaeological incidence of ancient human faecal material provides a rare opportunity to explore the taxonomic composition and metabolic capacity of the ancestral human intestinal microbiome (IM). Following the recovery of a single desiccated palaeo-faecal specimen from Bushman Rock Shelter in Limpopo Province, South Africa, we applied a multi-proxy analytical protocol to the sample. Our results indicate that the distal IM of the Neolithic Middle Iron Age (c. AD 1485) Bantu-speaking individual exhibits features indicative of a largely mixed forager-agro-pastoralist diet. Subsequent comparison with the IMs of the Tyrolean Iceman (Otzi) and contemporary Hadza hunter-gatherers, Malawian agro-pastoralists and Italians, reveals that this IM precedes recent adaptation to Western diets, including the consumption of coffee, tea, chocolate, citrus and soy, and the use of antibiotics, analgesics and also exposure to various toxic environmental pollutants. Our analyses reveal some of the c...

The Vaccinium angustifolium (wild blueberry) agricultural system involves transformation of the environment surrounding the plant to intensify plant propagation and to improve fruit yield, and therefore is an advantageous model to study the interaction between soil microorganisms and plant-host interactions. We studied this system to address the question of a trade-off between microbial adaptation to a plant-influenced environment and its general metabolic capabilities. We found that many basic metabolic functions were similarly represented in bulk soil and rhizosphere microbiomes overall. However, we identified a niche-specific difference in functions potentially beneficial for microbial survival in the rhizosphere but that might also reduce the ability of microbes to withstand stresses in bulk soils. These functions could provide the microbiome with additional capabilities to respond to environmental fluctuations in the rhizosphere triggered by changes in the composition of root exudates. Based on our analysis we hypothesize that the rhizosphere-specific pathways involved in xenobiotics biodegradation could provide the microbiome with functional flexibility to respond to plant stress status.

Aninvestigation of the impact of change innatural resource use inHadza livelihood:a case of Eyasi basinThomas Reuben MollelMaster of Science (NaturalResources Assessment and Management)University of Dar es Salaam, Institute of Resources Assessment, 2016This  study  intended  to  investigate  the  impact  of  change  in  natural  resources  use  in Hadza livelihood for the period 1980 to 2014. The study involved Domanga, Mongo wa Mono  and  Quang’dend  villages  in  Mbulu  and  Karatu  Districts,  respectively. Participatory  approaches  were  used  to  obtain  data  for  this  research.  Household interviews, wealth ranking, transect walk and observation were used to obtain data. The data collected were analyzed using SPSS and Excel programmes.  Findings showed that the  natural  habitats  of  the  Hadza  were  undergoing  fast  changes  now  than  at  any  other time  in  history  which  brings  both  negative  and  positive  changes  to  the  Hadza communities.    This  was  mainly  evidenced  by  increase  of  farms  and  grazing  in traditional hunter-gatherer areas. In Domanga the area settled and cultivated comprised 10%  of  all  land  and  that  in  Quang’dendwas  7%.  This  indicated  a  great  decline  in natural  fruits,  roots,  tubers,  berries  and  wild  animals  which  are  the  major  sources  of food  for  the  Hadza.  Many  water  sources  had  also  dried  out  due  to  increase  in  use  for irrigation  and  for  domestic  use  in  the  growing  human  settlements.  There  was  a noticeable  change  in  the  livelihood  of  the  Hadza  in  Mbulu  District  where  many  had started to diversify their  livelihood by doing some farming and keeping livestock such as  poultry,  and  engaging  in  ecotourism.  In  Karatu District  the  Hadza  were  forced  to change  their  livelihood  due  to  marginalization  by  other  communities  which  deprived them  of  their  natural  food  sources  and  water.  Within  this  process  many  Hadza  had become  impoverished  and  others  had  resorted  to  untraditional  behaviour  of  heavy drinking,  increased  social  conflicts  and  even  starvation.  This  research  recommends meaningful effort from the government and relevant NGOs should be made to help the Hadza  transform  safely  to  modern  livelihoods  while  at  the  same  time granting  them rights to some of their ancestral lands.