Our field data from the Upper Palaeolithic site of Al-Ansab 1 (Jordan) and from a pollen sequence in the Dead Sea elucidate the role that changing Steppe landscapes played in facilitating anatomically modern human populations to enter a major expansion and consolidation phase, known as the "Early Ahmarian", several millennia subsequent to their initial Marine Isotope Stage 4/3 migration from Africa, into the Middle East. The Early Ahmarian techno-cultural unit covers a time range between 45 ka-37 ka BP. With so far more than 50 sites found, the Early Ahmarian is the first fully Upper Palaeolithic techno-cultural unit exclusively and undisputedly related to anatomically modern human populations. In order to better understand the potentially attractive features of the Early Ahmarian environmental context that supported its persistence for over 8,000 years, we carried out a decennial research program in Jordan and in the Dead Sea. This included (1) a geoscientific and archaeological survey program in the Wadi Sabra (Jordan) with a particular focus on excavations at the Early Ahmarian site of Al-Ansab 1 alongside the detailed analysis of Quaternary sediments from the same area and (2) palaeobotanical research based on Quaternary lake deposits from the Dead Sea. Our pollen data from the Dead Sea indicate slow, low frequency vegetational variation with expanding Artemisia steppe, from 60 to 20 ka BP (MIS 3-2). Here, we see a reciprocal assimilation of southern and northern Levantine vegetation zones thereby enhancing a long-lasting south-to-north steppe corridor. The same integration process accelerated about 40 ka ago, when forested areas retreated in the Lebanese Mountains. The process then extended to encompass an area from Southern Lebanon to

Environmental uncertainty, climate change, and ecological crisis loom large in the present and permeate scenarios of potential futures. To understand these predicaments and prepare for potentially catastrophic scenarios, there have been repeated calls to explore the diverse human–climate relations of human societies in the past. The archeological record offers rich datasets on human–environment articulations reflected in artifacts, ecofacts, and their relational entanglements. Much of these human–environment conjugations are, in the absence of written records, only accessible archeologically, yet that discipline has played little role in the “environmental turn” of the humanities or the climate change debate. In an effort to articulate archeological research traditions with these concerns, we frame the notion of the paleoenvironmental humanities (pEH): a deep‐time training ground for current ideas and theories on the interrelationship of human behavior, climate, and environmental change. The key objective of the pEH is to offer a rejoinder between ecological reductionism and the adoption of full‐scale environmental relativism, opening up new interpretive and comparative terrain for the examination of human–climate relations. We probe the potential of this perspective by drawing on insights from Pleistocene archeology. The long‐term temporalities of the Pleistocene, we argue, promote alternative imaginaries of the human–climate nexus and draw attention to similarly long‐term futures. We end our proposal with a reflection on the responsibility of archeological practitioners to balance hopeful narratives of human adaptability with those of societal collapse, countering the emergent linkage between climate skepticism and right‐wing nationalism, and to bring such issues to public attention. This article is categorized under: Climate, History, Society, Culture > Disciplinary Perspectives

The identification of material culture variability remains an important goal in archaeology, as such variability is commonly coupled with interpretations of cultural transmission and adaptation. While most archaeological cultures are defined on the basis of typology and research tradition, cultural evolutionary reasoning combined with computer-aided methods such as geometric morphometrics (GMM) can shed new light on the validity of many such entrenched groupings, especially in regard to European Upper Palaeolithic projectile points and their classification. Little methodological consistency, however, makes it difficult to compare the conclusions of such studies. Here, we present an effort towards a benchmarked, case-transferrable toolkit that comparatively explores relevant techniques centred on outline-based GMM. First, we re-analyse two previously conducted landmark-based analyses of stone artefacts using our whole-outline approach, demonstrating that outlines can offer an efficient and reliable alternative. We then show how a careful application of clustering algorithms to GMM outline data is able to successfully discriminate between distinctive tool shapes and suggest that such data can also be used to infer cultural evolutionary histories matching already observed typo-chronological patterns. Building on this baseline work, we apply the same methods to a dataset of large tanged points from the European Final Palaeolithic (ca. 15,000–11,000 cal BP). Exploratively comparing the structure of design space within and between the datasets analysed here, our results indicate that Final Palaeolithic tanged point shapes do not fall into meaningful regional or cultural evolutionary groupings but exhibit an internal outline variance comparable to spatiotemporally much closer confined artefact groups of post-Palaeolithic age. We discuss these contrasting results in relation to the architecture of lithic tool design spaces and technological differences in blank production and tool manufacture.

This editorial introduces Archaeo-Ornithology as a distinct field of inquiry and discusses its multidisciplinary background and potential contribution to a more nuanced characterisation of changing human-animal interfaces through time and space. We propose a new conceptual modelgrounded in the analysis of 'triangles of interaction'to elucidate the interactional dynamics which underpin varying human-animal relationships. The utility of this approach is demonstrated by exploring the example of anthropogenic space as a key context of human-bird figurations. Each contributing paper of the special issue, which will be introduced in more detail below, foregrounds different aspects and emphasises varying dimensions of the triangle, thus contributing in different ways to archaeo-ornithological research. As highlighted throughout the introduction, however, archaeo-ornithological approaches are not only capable of shedding new light on old questions about the past, they also have the potential of addressing some pressing contemporary quandaries, including continuing debates on the Anthropocene.