View Of Human Evolution Research Articles

Piaget’s Paradox: Adaptation, Evolution, and Agency

Piaget’s Behaviour and Evolution (1976) sought to reconcile the view that organismal adaptiveness – in the form of equilibration – could contribute to human behavioural, cognitive, and epistemic evolution with the prevailing evolutionary orthodoxy of the time. He was particularly concerned to demonstrate that human behaviour, cognition, and knowledge acquisition could be drivers of human evolution. Piaget hypothesised constructive role for organisms in evolution was significantly at variance with the prevailing modern synthesis orthodoxy of his time (and ours). He looked to Conrad Hal Waddington’s genetic assimilation as a model for how equilibration could generate evolutionary novelties which become fixed by subsequent evolution. I make two claims. Firstly, that Piaget’s appeal to Waddington fails to reconcile his views of human evolution with the modern synthesis. Secondly, the newly emerging agential conception of evolution, in which the purposive activities of organisms are the principal causes of evolution, offers strong support to Piaget’s model of “organisational” evolution.

Archaic hominin introgression into modern human genomes.

Ancient genomes from multiple Neanderthal and the Denisovan individuals, along with DNA sequence data from diverse contemporary human populations strongly support the prevalence of gene flow among different hominins. Recent studies now provide evidence for multiple gene flow events that leave genetic signatures in extant and ancient human populations. These events include older gene flow from an unknown hominin in Africa predating out-of-Africa migrations, and in the last 50,000-100,000 years, multiple gene flow events from Neanderthals into ancestral Eurasian human populations, and at least three distinct introgression events from a lineage close to Denisovans into ancestors of extant Southeast Asian and Oceanic populations. Some of these introgression events may have happened as late as 20,000 years before present and reshaped the way in which we think about human evolution. In this review, I aim to answer anthropologically relevant questions with regard to recent research on ancient hominin introgression in the human lineage. How have genomic data from archaic hominins changed our view of human evolution? Is there any doubt about whether introgression from ancient hominins to the ancestors of present-day humans occurred? What is the current view of human evolutionary history from the genomics perspective? What is the impact of introgression on human phenotypes?

Culture: The Driving Force of Human Cognition.

It is often, though sometimes only implicitly, assumed that biological/genetic evolution sets neural substrates, that neural substrates fix cognitive abilities, and that cognitive abilities determine the spectrum of cultural practices exhibited by a biological species. We label this view as the "bottom-up-only" view. In this paper we will show that such a "chain of dependence" is much looser than usually assumed, especially as far as recent periods (the last 800,000years vs. the last 7 million years or more) are considered. We will provide evidence and arguments supporting the idea that cultural innovation may have direct and ascertainable effects both on the cognitive capabilities of populations of hominins (via what we call "cultural exaptation") and on the neural substrates of the individuals in those populations (via what we call "cultural neural reuse"). Together, cultural exaptation and cultural neural reuse may give raise to a plausible general mechanism for cognitive evolution in which culture is the driving force, thus offering a "top-down-also" view of human evolution.

The Evolutionary Road: The Common Goal of Human as a Species

This paper puts forward the idea of the right, evolution road of all mankind, and emphasizes that it should be regarded as the common purpose of human beings from the view of human evolution. Also from the point of philosophical, it is clarifying the concept of human path, emphasizing the individual and its existence, openness and humanity based on human nature (human emotion, love, care); the rational (thinking, reason) based on reason, experience, learning and research; and two goals: utilitarian and efficiency, the evolutionary of human beings. In the end, from the view of the question they focused on, attribution, solution and attitude towards human nature, it distinguishes the concept between “the evolutionary road of human beings” and “Noble Eightfold Path” to alert people that development, progress, evolutionary path of human is unparalleled and it is the right way for mankind. Purpose: The combination of reason and human nature, so as to enhancing human efficiency, meeting human needs, and ultimately promoting people into the correct, evolutionary path. Method: Descriptive thinking can be used.

Index to Titles and Authors/Editors of Books Reviewed Volume 92 (2017)

Index to Titles and Authors/Editors of Books Reviewed Volume 92 (2017)

Seeing past the Zero Sum Game in Environmental Policy Harder Than It Looks

In Nonzero: The Logic of Human Destiny, Robert Wright offers a sweeping view of human evolution that culminates in his argument that modern society has become so complex and interconnected that there are no true “zero sum” games to be played between people or institutions. Indeed, much of environmental policy rests on the promise of improving the greater good by leveraging the ubiquitous presence of nonzerosumness. But Wright’s thesis turns back on itself. There is no question that social-ecological systems (SES) are highly complex and interconnected, making true zero sum games hard to find. But the sheer complexity of massive SESs is what also makes it excruciatingly difficult to connect all the dots of the nonzero sum game within the SES. At a macro scale, nonzero sum rules; at the micro scale of the farmer seeing more water go by the farm in the river, it looks like zero sum. In this short essay I outline six reasons why seeing past these micro zero sum game is so difficult, particularly for those caught in them who consider themselves the losers: (1) mixed metrics; (2) multi-scalar nature of SESs; (3) temporal transitions; (4) distribution of costs and benefits; (5) imprecise valuation; and (6) polarizing effect of government intervention. The essay was written before the 2016 election. An Epilogue offers thoughts on its meaning.

A simple rule governs the evolution and development of hominin tooth size.

The variation in molar tooth size in humans and our closest relatives (hominins) has strongly influenced our view of human evolution. The reduction in overall size and disproportionate decrease in third molar size have been noted for over a century, and have been attributed to reduced selection for large dentitions owing to changes in diet or the acquisition of cooking. The systematic pattern of size variation along the tooth row has been described as a 'morphogenetic gradient' in mammal, and more specifically hominin, teeth since Butler and Dahlberg. However, the underlying controls of tooth size have not been well understood, with hypotheses ranging from morphogenetic fields to the clone theory. In this study we address the following question: are there rules that govern how hominin tooth size evolves? Here we propose that the inhibitory cascade, an activator-inhibitor mechanism that affects relative tooth size in mammals, produces the default pattern of tooth sizes for all lower primary postcanine teeth (deciduous premolars and permanent molars) in hominins. This configuration is also equivalent to a morphogenetic gradient, finally pointing to a mechanism that can generate this gradient. The pattern of tooth size remains constant with absolute size in australopiths (including Ardipithecus, Australopithecus and Paranthropus). However, in species of Homo, including modern humans, there is a tight link between tooth proportions and absolute size such that a single developmental parameter can explain both the relative and absolute sizes of primary postcanine teeth. On the basis of the relationship of inhibitory cascade patterning with size, we can use the size at one tooth position to predict the sizes of the remaining four primary postcanine teeth in the row for hominins. Our study provides a development-based expectation to examine the evolution of the unique proportions of human teeth.

Excavations at Schöningen and paradigm shifts in human evolution

The exceptional preservation at Schöningen together with a mixture of perseverance, hard work, and sheer luck led to the recovery of unique finds in an exceptional context. The 1995 discovery of numerous wooden artifacts, most notably at least 10 carefully made spears together with the skeletons of at least 20 to 25 butchered horses, brought the debate about hunting versus scavenging among late archaic hominins and analogous arguments about the purportedly primitive behavior of Homo heidelbergensis and Neanderthals to an end. Work under H. Thieme's lead from 1992 to 2008 and results from the current team since 2008 demonstrate that late H. heidelbergensis or early Neanderthals used sophisticated artifacts made from floral and faunal materials, in addition to lithic artifacts more typically recovered at Lower Paleolithic sites. The finds from the famous Horse Butchery Site and two dozen other archaeological horizons from the edges of the open-cast mine at Schöningen provide many new insights into the technology and behavioral patterns of hominins about 300 ka BP during MIS 9 on the Northern European Plain. An analysis of the finds from Schöningen and their contexts shows that the inhabitants of the site were skilled hunters at the top of the food chain and exhibited a high level of planning depth. These hominins had command of effective means of communication about the here and now, and the past and the future, that allowed them to repeatedly execute well-coordinated and successful group activities that likely culminated in a division of labor and social and economic patterns radically different from those of all non-human primates. The unique preservation and high quality excavations have led to a major paradigm shift or “Schöningen Effect” that changed our views of human evolution during the late Lower Paleolithic. In this respect, we can view the behaviors documented at Schöningen as a plausible baseline for the behavioral sophistication of archaic hominins of the late Middle Pleistocene and subsequent periods.

Going the whole orang: Darwin, Wallace and the natural history of orangutans

This article surveys the European discovery and early ideas about orangutans followed by the contrasting experiences with these animals of the co-founders of evolution by natural selection, Charles Darwin and Alfred Russel Wallace. The first non-human great ape that both of them interacted with was the orangutan. They were both profoundly influenced by what they saw, but the contexts of their observations could hardly be more different. Darwin met orangutans in the Zoological Gardens in London while Wallace saw them in the wild in Borneo. In different ways these observations helped shape their views of human evolution and humanity’s place in nature. Their findings played a major role in shaping some of the key questions that were pursued in human evolutionary studies during the rest of the nineteenth century.

The fossil chronicles: how two controversial discoveries changed our view of human evolution

List of Illustrations Acknowledgments Introduction 1. Of Paleopolitics and Missing Links 2. Taung: A Fossil to Rival Piltdown 3. Taung's Checkered Past 4. Sulcal Skirmishes 5. Once upon a Hobbit 6. Flo's Little Brain 7. Sick Hobbits, Quarrelsome Scientists 8. Whence Homo floresiensis? 9. Bones to Pick Notes Glossary References Index

Paleogenomics of Archaic Hominins

In order to understand the genetic basis for the evolutionary success of modern humans, it is necessary to compare their genetic makeup to that of closely related species. Unfortunately, our closest living relatives, the chimpanzees, are evolutionarily quite distant. With the advent of ancient DNA study and more recently paleogenomics - the study of the genomes of ancient organisms - it has become possible to compare human genomes to those of much more closely related groups. Our closest known relatives are the Neanderthals, which evolved and lived in Europe and Western Asia, from about 600,000 years ago until their disappearance around 30,000 years ago following the expansion of anatomically modern humans into their range. The closely related Denisovans are only known by virtue of their DNA, which has been extracted from bone fragments dating around 30,000 to 50,000 years ago found in a single Siberian cave. Analyses of Neanderthal and Denisovan nuclear and mitochondrial genomes have revealed surprising insights into these archaic humans as well as our own species. The genomes provide a preliminary catalogue of derived amino acids that are specific to all extant modern humans, thus offering insights into the functional differences between the three lineages. In addition, the genomes provide evidence of gene flow between the three lineages after anatomically modern humans left Africa, drastically changing our view of human evolution.

New View of Human Evolution? 3.2 Million-Year-Old Fossil Foot Bone Supports Humanlike Bipedalism in Lucy’s Species

New View of Human Evolution? 3.2 Million-Year-Old Fossil Foot Bone Supports Humanlike Bipedalism in Lucy’s Species

Fossils that Change Everything We Know About Human Evolution (...Or Not)

Dramatic headlines touting new fossil discoveries often proclaim that our view of human evolution has been revolutionized. While this is occasionally the case, it is more often true that new fossils enrich our understanding of our own ancestry or answer scientific questions that could not be resolved with previous data. Even spectacular new discoveries, such as the now famous “hobbit” skeleton (Homo floresiensis), can usually be included in the human family tree without any significant change in the inferences about the phylogenetic relationships or taxonomic status of the rest of its members. It is a testament to the power of evolutionary theory and the careful comparative study of human and other fossils that what we know about human evolution changes so little, even when spectacular new discoveries are announced.

Mirror, Mirror on the Wall

This paper investigates an historical episode that involved an object that was both scientific and popular. In 1908, the first almost complete Neanderthal skeleton was discovered at La Chapelle-aux-Saints, France. From its very rebirth, the specimen became an object of interest to scientists holding different views of human evolution. It also was of interest for a public whose Catholic and anti-clerical stances were voiced through the press, and for the modernist clerical prehistorians who had discovered it. Conceiving of reconstruction as referring to either verbal or visual representation of the caveman from La Chapelle-aux-Saints, this paper discusses the multiplication of Neanderthal images in newspaper articles and illustrations that expressed particular scientific and political interests. This treatment of the newspaper as a site of encounters and knowledge production among these various constituencies is afforded by a set of newspaper excerpts on the specimen collected by the first person to physically reconstruct the bones, Marcellin Boule, at the Mus éum d'Histoire Naturelle in Paris. While the newspapers were welcome allies in the dissemination of the discovery and of the scientist's renown at home and abroad, Boule might have been less content with the way in which the various papers represented his work – or was he? As an object associated with such large issues as religion, evolutionism and nationalism, the ‘Old Man from La Chapelle-aux-Saints’ had to fulfil contradictory desires and his images multiplied accordingly.

A Worm's View of Human Evolution

A Worm's View of Human Evolution

Alternative models of Pleistocene biocultural evolution: a response to Foley

Human origins research has had a long history of vigorous debate. Recent discussion has been no exception, the more so perhaps as the strands of evidence — anthropological, archaeological, and now molecular-biological — are sufficiently diverse that not many can be well placed to deal fairly with them all. Here issue is taken with Foley's cladistic view of human evolution, and with the ‘Garden of Eden’ hypothesis of a single source in Africa for modern human populations.

Evolution and Debates Over Human Progress from Darwin to Sociobiology

In the 1st section of her essay Kingsland discusses the intellectual background to Darwins ON THE ORIGIN OF SPECIES focusing on his transformation of the concept of the struggle for existence brought about by his reading of Malthus. Darwins historical method of analysis and his destruction of the teleological framework of natural history raised the problem of how mans progress could be explained as the outcome of natural selection. Section 2 discusses 2 alternative views of human evolution proposed by Herbert Spencer and Alfred Russel Wallace. Section 3 discussed Darwins idea of human evolution in THE DESCENT OF MAN. Section 4 surveys the emergence of the engineering mentality characteristics of the 20th century; this movement stimulated a great deal of research on heredity population growth and evolutionary biology. The final section discusses the neo-Darwinian view of sociobiology which addresses the biological origins of social behavior and carries controversial implications for social planning and population policy.

On Hemmer's New View of Human Evolution

On Hemmer's New View of Human Evolution

The integral view of human evolution

(1965). The integral view of human evolution. Pacific Philosophy Forum: Vol. 4, No. 2, pp. 103-105.