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The hominin fossil record documents a history of critical evolutionary events that have ultimately shaped and defined what it means to be human, including the origins of bipedalism; the emergence of our genus Homo; the first use of stone tools; increases in brain size; and the emergence of Homo sapiens, tools, and culture. The Earth's geological record suggests that some evolutionary events were coincident with substantial changes in African and Eurasian climate, raising the possibility that critical junctures in human evolution and behavioral development may have been affected by the environmental characteristics of the areas where hominins evolved. Understanding Climate's Change on Human Evolution explores the opportunities of using scientific research to improve our understanding of how climate may have helped shape our species. Improved climate records for specific regions will be required before it is possible to evaluate how critical resources for hominins, especially water and vegetation, would have been distributed on the landscape during key intervals of hominin history. Existing records contain substantial temporal gaps. The book's initiatives are presented in two major research themes: first, determining the impacts of climate change and climate variability on human evolution and dispersal; and second, integrating climate modeling, environmental records, and biotic responses. Understanding Climate's Change on Human Evolution suggests a new scientific program for international climate and human evolution studies that involve an exploration initiative to locate new fossil sites and to broaden the geographic and temporal sampling of the fossil and archeological record; a comprehensive and integrative scientific drilling program in lakes, lake bed outcrops, and ocean basins surrounding the regions where hominins evolved and a major investment in climate modeling experiments for key time intervals and regions that are critical to understanding human evolution.
This generously illustrated book tells the story of the human family, showing how our species' physical traits and behaviors evolved over millions of years as our ancestors adapted to dramatic environmental changes. In What Does It Means to Be Human? Rick Potts, director of the Smithsonian's Human Origins Program, and Chris Sloan, National Geographic's paleoanthropolgy expert, delve into our distant past to explain when, why, and how we acquired the unique biological and cultural qualities that govern our most fundamental connections and interactions with other people and with the natural world. Drawing on the latest research, they conclude that we are the last survivors of a once-diverse family tree, and that our evolution was shaped by one of the most unstable eras in Earth's environmental history. The book presents a wealth of attractive new material especially developed for the Hall's displays, from life-like reconstructions of our ancestors sculpted by the acclaimed John Gurche to photographs from National Geographic and Smithsonian archives, along with informative graphics and illustrations. In coordination with the exhibit opening, the PBS program NOVA will present a related three-part television series, and the museum will launch a website expected to draw 40 million visitors.
An insightful new work, Function, Phylogeny, and Fossils integrates two practices in paleobiology which are often separated - functional and phylogenetic analysis. The book summarizes the evidence on paleoenvironments at the most important Miocene hominoid sites and relates it to the pertinent fossil record. The contributors present the most up-to-date statements on the functional anatomy and likely behavior of the best known hominoids of this crucial period of ape and human evolution. A key feature is a comprehensive table listing 240 characteristics among 13 genera of living and extinct hominoids.
This book provides a benchmark study of southern African landscape evolution during the Quaternary, for researchers, professionals and policymakers.
Neanderthals and Modern Humans develops the theme of the close relationship between climate change, ecological change and biogeographical patterns in humans during the Pleistocene. In particular, it challenges the view that Modern Human 'superiority' caused the extinction of the Neanderthals between 40 and 30 thousand years ago. Clive Finlayson shows that to understand human evolution, the spread of humankind across the world and the extinction of archaic populations, we must move away from a purely theoretical evolutionary ecology base and realise the importance of wider biogeographic patterns including the role of tropical and temperate refugia. His proposal is that Neanderthals became extinct because their world changed faster than they could cope with, and that their relationship with the arriving Modern Humans, where they met, was subtle.
Addressing the relationship between climatic and biotic evolution, this work focuses on how climatic change during the last 15 million years - especially the last three million - has affected human evolution and other evolutionary events.
This book reviews key themes and developments in palaeoanthropology, exploring their impact on our understanding of human origins in Africa.
The study of human evolution is advancing rapidly. New fossil evidence is adding ever more pieces to the puzzle of our past; the new science of ancient DNA is completely reshaping theories of early human populations and migrations. Bernard Wood traces the field of palaeoanthropology from its beginnings in the eighteenth century to the present.
Bringing together archaeological, paleoenvironmental, paleontological and genetic data, this book makes a first attempt to reconstruct African population histories from out species' evolution to the Holocene. Africa during Marine Isotope Stages (MIS) 6 to 2 (~190-12,000 years ago) witnessed the biological development and behavioral florescence of our species. Modern human population dynamics, which involved multiple population expansions, dispersals, contractions and extinctions, played a central role in our species’ evolutionary trajectory. So far, the demographic processes – modern human population sizes, distributions and movements – that occurred within Africa during this critical period have been consistently under-addressed. The authors of this volume aim at (1) examining the impact of this glacial-interglacial- glacial cycle on human group sizes, movements and distributions throughout Africa; (2) investigating the macro- and micro-evolutionary processes underpinning our species’ anatomical and behavioral evolution; and (3) setting an agenda whereby Africa can benefit from, and eventually contribute to, the increasingly sophisticated theoretical and methodological palaeodemographic frameworks developed on other continents.
There are some issues in human paleontology that seem to be timeless. Most deal with the origin and early evolution of our own genus – something about which we should care. Some of these issues pertain to taxonomy and systematics. How many species of Homo were there in the Pliocene and Pleistocene? How do we identify the earliest members the genus Homo? If there is more than one Plio-Pleistocene species, how do they relate to one another, and where and when did they evolve? Other issues relate to questions about body size, proportions and the functional adaptations of the locomotor skeleton. When did the human postcranial “Bauplan” evolve, and for what reasons? What behaviors (and what behavioral limitations) can be inferred from the postcranial bones that have been attributed to Homo habilis and Homo erectus? Still other issues relate to growth, development and life history strategies, and the biological and archeological evidence for diet and behavior in early Homo. It is often argued that dietary change played an important role in the origin and early evolution of our genus, with stone tools opening up scavenging and hunting opportunities that would have added meat protein to the diet of Homo. Still other issues relate to the environmental and climatic context in which this genus evolved.