Amplio, Ergo Sum

2018 ◽  
Vol 27 (4) ◽  
pp. 686-697
Author(s):  
DAVID R. LAWRENCE
Keyword(s):  
Tool Use ◽  
Homo Sapiens ◽  
Good Reason ◽  
Essential Element ◽  
Direct Result ◽  
Modern Humans ◽  
The Core ◽  
Enhancement Technologies

Abstract:This article aims to explore the idea that enhancement technologies have been and will continue to be an essential element of what we might call the “human continuum,” and are indeed key to our existence and evolution into persons. Whereas conservative commentators argue that enhancement is likely to cause us to lose our humanity and become something other, it is argued here that the very opposite is true: that enhancement is the core of what and who we are. Using evidence from paleoanthropology to examine the nature of our predecessor species, and their proclivities for tool use, we can see that there is good reason to assume that the development of Homo sapiens is a direct result of the use of enhancement technologies. A case is also made for broad understandings of the scope of enhancement, based on the significant evolutionary results of acts that are usually dismissed as “unremarkable.” Furthermore, the use of enhancement by modern humans is no different than these prehistoric applications, and is likely to ultimately have similar results. There is no good reason to assume that whatever we may become will not also consider itself human.

Neanderthals and modern humans

2017 ◽  
Author(s):  
Francisco J. Ayala ◽  
Camilo J. Cela-Conde
Keyword(s):  
Genetic Differentiation ◽  
Nuclear Dna ◽  
Homo Sapiens ◽  
Whole Genome ◽  
Upper Palaeolithic ◽  
Modern Humans ◽  
Homo Neanderthalensis ◽  
Modern Mind ◽  
Similarities And Differences ◽  
Mode 3

This chapter deals with the similarities and differences between Homo neanderthalensis and Homo sapiens, by considering genetic, brain, and cognitive evidence. The genetic differentiation emerges from fossil genetic evidence obtained first from mtDNA and later from nuclear DNA. With high throughput whole genome sequencing, sequences have been obtained from the Denisova Cave (Siberia) fossils. Nuclear DNA of a third species (“Denisovans”) has been obtained from the same cave and used to define the phylogenetic relationships among the three species during the Upper Palaeolithic. Archaeological comparisons make it possible to advance a four-mode model of the evolution of symbolism. Neanderthals and modern humans would share a “modern mind” as defined up to Symbolic Mode 3. Whether the Neanderthals reached symbolic Mode 4 remains unsettled.

scholarly journals Recent origin of low trabecular bone density in modern humans

2014 ◽  
Vol 112 (2) ◽  
pp. 366-371 ◽  
Author(s):  
Habiba Chirchir ◽  
Tracy L. Kivell ◽  
Christopher B. Ruff ◽  
Jean-Jacques Hublin ◽  
Kristian J. Carlson ◽  
...  
Keyword(s):  
Body Size ◽  
Trabecular Bone ◽  
Homo Sapiens ◽  
Modern Human ◽  
Homo Erectus ◽  
Lower Limbs ◽  
Modern Humans ◽  
Human Skeleton ◽  
Trabecular Density ◽  
Fossil Hominins

Humans are unique, compared with our closest living relatives (chimpanzees) and early fossil hominins, in having an enlarged body size and lower limb joint surfaces in combination with a relatively gracile skeleton (i.e., lower bone mass for our body size). Some analyses have observed that in at least a few anatomical regions modern humans today appear to have relatively low trabecular density, but little is known about how that density varies throughout the human skeleton and across species or how and when the present trabecular patterns emerged over the course of human evolution. Here, we test the hypotheses that (i) recent modern humans have low trabecular density throughout the upper and lower limbs compared with other primate taxa and (ii) the reduction in trabecular density first occurred in early Homo erectus, consistent with the shift toward a modern human locomotor anatomy, or more recently in concert with diaphyseal gracilization in Holocene humans. We used peripheral quantitative CT and microtomography to measure trabecular bone of limb epiphyses (long bone articular ends) in modern humans and chimpanzees and in fossil hominins attributed to Australopithecus africanus, Paranthropus robustus/early Homo from Swartkrans, Homo neanderthalensis, and early Homo sapiens. Results show that only recent modern humans have low trabecular density throughout the limb joints. Extinct hominins, including pre-Holocene Homo sapiens, retain the high levels seen in nonhuman primates. Thus, the low trabecular density of the recent modern human skeleton evolved late in our evolutionary history, potentially resulting from increased sedentism and reliance on technological and cultural innovations.

scholarly journals Arguments that Prehistorical and Modern Humans Belong to the Same Species

2019 ◽  
Author(s):  
Rainer Kühne
Keyword(s):  
Homo Sapiens ◽  
Single Species ◽  
Homo Erectus ◽  
Modern Humans ◽  
Homo Neanderthalensis ◽  
Out Of Africa

I argue that the evidence of the Out-of-Africa hypothesis and the evidence of multiregional evolution of prehistorical humans can be understood if there has been interbreeding between Homo erectus, Homo neanderthalensis, and Homo sapiens at least during the preceding 700,000 years. These interbreedings require descendants who are capable of reproduction and therefore parents who belong to the same species. I suggest that a number of prehistorical humans who are at present regarded as belonging to different species belong in fact to one single species.  

Cain’s Children

2018 ◽  
pp. 89-101
Author(s):  
Erika Lorraine Milam
Keyword(s):  
Civil Rights ◽  
Homo Sapiens ◽  
Modern Humans ◽  
Evolutionary Lineage ◽  
The Moment ◽  
Course Of Study

This chapter traces the popularization of the “killer ape” theory through the work of Robert Ardrey. It shows how Ardrey did not confine his use of “mankind” to Homo sapiens or to men. Preferring to recognize the long evolutionary lineage resulting in modern humans, he used “man” to include all of our hominid ancestors, from the moment our evolutionary lineage diverged from the lineages of other apes. Second, the chapter reveals that, throughout his writings, but especially in African Genesis, Ardrey evoked stereotypes of Africa as a timeless, wild, and primitive continent in which our ancient past had been preserved for the few Westerners (like himself) who were brave enough to confront it. In doing so, Ardrey promoted images of Africans that cultural anthropologists, civil rights leaders, and the designers of Man: A Course of Study (MACOS) were desperately trying to combat but that a reading white public eagerly consumed.

Seven Steps in the Evolution of the Human Imagination

2007 ◽  
Author(s):  
STEVEN MITHEN
Keyword(s):  
Cultural Change ◽  
Homo Sapiens ◽  
Brain Size ◽  
Modern Human ◽  
Clear Picture ◽  
Modern Humans ◽  
Creative Imagination ◽  
African Apes ◽  
Ways Of Thinking ◽  
Forms Of Knowledge

The modern human is a product of six million years of evolution wherein it is assumed that the ancestor of man resembles that of a chimpanzee. This assumption is based on the similarities of the ape-like brain size and post-cranial characteristics of the earliest hominid species to chimpanzees. Whilst it is unclear whether chimpanzees share the same foresight and contemplation of alternatives as with humans, it is nevertheless clear that chimpanzees lack creative imagination — an aspect of modern human imagination that sets humanity apart from its hominid ancestors. Creative imagination pertains to the ability to combine different forms of knowledge and ways of thinking to form creative and novel ideas. This chapter discusses seven critical steps in the evolution of the human imagination. These steps provide a clear picture of the gradual emergence of creative imagination in humans from their primitive origins as Homo sapiens some 200,000 years ago. This chronological evolution of the imaginative mind of humans involves both biological and cultural change that began soon after the divergence of the two lineages that led to modern humans and African apes.

4. The long-term history of Europe and Asia

2018 ◽  
pp. 42-64
Author(s):  
Chris Gosden
Keyword(s):  
Global Warming ◽  
Tool Use ◽  
Homo Sapiens ◽  
Farming Systems ◽  
Sea Levels ◽  
Novel Technologies ◽  
Steppe Ecosystem ◽  
History Of ◽  
History Of Europe

‘The long-term history of Europe and Asia’ explains how the fluctuating climatic systems between cold and warm periods provided the context in which the global expansion of our ancestors occurred. It discusses the mammoth steppe ecosystem, the relationships between plants and animals, and the introduction of tool use, language, and farming systems across Europe and east Asia. The last great global warming—shifting vegetation zones, the territories of animals, and sea levels—was one of the most challenging periods in planetary history since the evolution of Homo sapiens. Yet from this period came a mass of novel technologies, skills, and relationships that provided the basis for life.

Human Perfection and Contemporary Enhancement Technologies

2021 ◽  
pp. 20-40
Author(s):  
Jesús Parra-Sáez
Keyword(s):  
New Technologies ◽  
Homo Sapiens ◽  
Human Species ◽  
Biomedical Technologies ◽  
Near Future ◽  
Enhancement Technologies

Human perfection has been one of the main objectives of the human species since the appearance of Homo sapiens, but contemporary biomedical technologies represent a promise to achieve it in the near future. In view of the new possibilities offered by new technologies, a scientific-philosophical theoretical debate has emerged between those who are in favor of its use on humanity for non-therapeutic purposes (posthumanists) and those who reject it (bioconservatives). In this chapter, the so-called “enhancement technologies,” the problems derived from their use with the aim of radically altering human abilities, and some of the most recent practical cases that have transcended the theoretical debate about their legitimacy are analyzed.

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