scholarly journals Darwin would have loved DNA: celebrating Darwin 200

2009 ◽  
Vol 5 (4) ◽  
pp. 503-505 ◽  
Author(s):  
Lindell Bromham

Analysis of DNA sequences now plays a key role in evolutionary biology research. If Darwin were to come back today, I think he would be absolutely delighted with molecular evolutionary genetics, for three reasons. First, it solved one of the greatest problems for his theory of evolution by natural selection. Second, it gives us a tool that can be used to investigate many of the questions he found the most fascinating. And third, DNA data confirm Darwin's grand view of evolution.

Author(s):  
J. Arvid Ågren

To many evolutionary biologists, the central challenge of their discipline is to explain adaptation, the appearance of design in the living world. With the theory of evolution by natural selection, Charles Darwin elegantly showed how a purely mechanistic process can achieve this striking feature of nature. Since Darwin, the way many biologists think about evolution and natural selection is as a theory about individual organisms. Over a century later, a subtle but radical shift in perspective emerged with the gene’s-eye view of evolution in which natural selection was conceptualized as a struggle between genes for replication and transmission to the next generation. This viewpoint culminated with the publication of The Selfish Gene by Richard Dawkins (Oxford University Press, 1976) and is now commonly referred to as selfish gene thinking. The gene’s-eye view has subsequently played a central role in evolutionary biology, although it continues to attract controversy. The central aim of this accessible book is to show how the gene’s-eye view differs from the traditional organismal account of evolution, trace its historical origins, clarify typical misunderstandings and, by using examples from contemporary experimental work, show why so many evolutionary biologists still consider it an indispensable heuristic. The book concludes by discussing how selfish gene thinking fits into ongoing debates in evolutionary biology, and what they tell us about the future of the gene’s-eye view of evolution. The Gene’s-Eye View of Evolution is suitable for graduate-level students taking courses in evolutionary biology, behavioural ecology, and evolutionary genetics, as well as professional researchers in these fields. It will also appeal to a broader, interdisciplinary audience from the social sciences and humanities including philosophers and historians of science


Author(s):  
Richard Machalek

During its emergence as a new academic discipline in the late 19th century, sociology was influenced by Darwin’s theory of evolution by natural selection. By the mid-20th century, however, biological thinking in general and evolutionary theory in particular had waned in influence in American sociology. This began to change during the last quarter of the 20th century—a development due in large part to the work of Edward O. Wilson, a prominent biologist and one of the founders of sociobiology. By the dawn of the 21st century, evolutionary thinking had again gained a foothold in the social sciences, including sociology. However, full consilience between evolutionary biology and sociology has not yet been achieved. This chapter reviews issues in terms of which evolutionary biology and sociology converge in some instances and diverge in others. The chapter concludes with an assessment of the prospects for the development of a robust evolutionary sociology.


2016 ◽  
Vol 48 (1) ◽  
pp. 133-150
Author(s):  
Radosław Siedliński

Abstract The aim of the paper is twofold. First, it presents the fundamental ideas and results of the “metabiology” created by Gregory Chaitin. Second, it shows why metabiology ultimately fails as a candidate for being a proper mathematical model for the theory of evolution by natural selection. Because of genocentric reductionism and biological oversimplifications, metabiology should be perceived rather as an expression of the philosophical worldview of it’s author.


Author(s):  
Samir Okasha

In 1859 Charles Darwin published On the Origin of Species, in which he set out his theory of evolution. The book marked a turning point in our understanding of the natural world and revolutionized biology. ‘Evolution and natural selection’ outlines the theory of evolution by natural selection, explaining its unique status in biology and its philosophical significance. It considers how Darwin’s theory undermined the ‘argument from design’, a traditional philosophical argument for the existence of God; how the integration of Darwin’s theory with genetics, in the early 20th century, gave rise to neo-Darwinism; and why, despite evolutionary theory being a mainstay of modern biology, in society at large there is a marked reluctance to believe in evolution.


1999 ◽  
Vol 22 (5) ◽  
pp. 888-888 ◽  
Author(s):  
Gwen J. Broude

Evidence reveals numerous cross-cultural universals regarding human mental processes and behavior. Similarly, cross-cultural data are consistent with predictions from theories of kin selection, reciprocal altruism, and sexual selection inspired by Darwin's theory of evolution by natural selection. Thus, the “annals of human behaviour” do provide “example[s] fitting the sociobiological bill,” (Lifelines, p. 202) thereby, supporting sociobiological accounts of human behavior.


2018 ◽  
Vol 5 (11) ◽  
pp. 181038 ◽  
Author(s):  
Darragh Hare ◽  
Bernd Blossey ◽  
H. Kern Reeve

The theory of evolution by natural selection can help explain why people care about other species. Building upon recent insights that morality evolves to secure fitness advantages of cooperation, we propose that conservation ethics (moral beliefs, attitudes, intuitions and norms regarding other species) could be adaptations that support cooperation between humans and non-humans. We present eco-evolutionary cost–benefit models of conservation behaviours as interspecific cooperation (altruism towards members of other species). We find that an evolutionary rule identical in structure to Hamilton's rule (which explains altruistic behaviour towards related conspecifics) can explain altruistic behaviour towards members of other species. Natural selection will favour traits for selectively altering the success of members of other species (e.g. conserving them) in ways that maximize inclusive fitness return benefits. Conservation behaviours and the ethics that evolve to reinforce them will be sensitive to local ecological and socio-cultural conditions, so will assume different contours in different places. Difficulties accurately assessing costs and benefits provided by other species, time required to adapt to ecological and socio-cultural change and barriers to collective action could explain the apparent contradiction between the widespread existence of conservation ethics and patterns of biodiversity decline globally.


1993 ◽  
Vol 1 (1_2) ◽  
pp. 179-209 ◽  
Author(s):  
Thomas S. Ray

Our concepts of biology, evolution, and complexity are constrained by having observed only a single instance of life, life on earth. A truly comparative biology is needed to extend these concepts. Because we cannot observe life on other planets, we are left with the alternative of creating Artificial Life forms on earth. I will discuss the approach of inoculating evolution by natural selection into the medium of the digital computer. This is not a physical/chemical medium; it is a logical/informational medium. Thus, these new instances of evolution are not subject to the same physical laws as organic evolution (e.g., the laws of thermodynamics) and exist in what amounts to another universe, governed by the “physical laws” of the logic of the computer. This exercise gives us a broader perspective on what evolution is and what it does. An evolutionary approach to synthetic biology consists of inoculating the process of evolution by natural selection into an artificial medium. Evolution is then allowed to find the natural forms of living organisms in the artificial medium. These are not models of life, but independent instances of life. This essay is intended to communicate a way of thinking about synthetic biology that leads to a particular approach: to understand and respect the natural form of the artificial medium, to facilitate the process of evolution in generating forms that are adapted to the medium, and to let evolution find forms and processes that naturally exploit the possibilities inherent in the medium. Examples are cited of synthetic biology embedded in the computational medium, where in addition to being an exercise in experimental comparative evolutionary biology, it is also a possible means of harnessing the evolutionary process for the production of complex computer software.


Philosophy ◽  
1973 ◽  
Vol 48 (183) ◽  
pp. 35-49 ◽  
Author(s):  
Andrew Woodfield

Darwinism is ‘much more than a theory’, said the German botanist Albert Wigand in 1875; ‘it is a frame of mind which dominates thought, a resuscitated “Naturphilosophie”, in which the terms “Polarity”, “Totality”, “Subject”, “Object” are replaced by terms such as “Struggle for Existence”, “Inheritance”, “Selection”, and so on.’ Subsequent events have indicated that Wigand had a point. But it is not clear to us yet what exactly the point is. Interest in Man's Place in Nature, and in his alleged biological uniqueness as a language-user and tool-maker, is as great now as it was in 1871 when Darwin's Descent of Man was first published. We now have access to well over a hundred years' worth of material sparked off by The Origin of Species, linking Darwin's theory of evolution by natural selection to almost every field under the sun. Yet the precise status of his theory is still the subject of vigorous controversy in philosophy of science.


2021 ◽  
Author(s):  
Johannes Jaeger

This chapter examines the deep connections between biological organization, agency, and evolution by natural selection. Using Griesemer’s account of the re- producer, I argue that the basic unit of evolution is not a genetic replicator, but a complex hierarchical life cycle. Understanding the self-maintaining and self-proliferating properties of evolvable reproducers requires an organizational account of ontogenesis and reproduction. This leads us to an extended and disambiguated set of minimal conditions for evolution by natural selection—including revised or new principles of heredity, variation, and ontogenesis. More importantly, the continuous maintenance of biological organization within and across generations im- plies that all evolvable systems are agents, or contain agents among their parts. This means that we ought to take agency seriously—to better understand the concept and its role in explaining biological phenomena—if we aim to obtain an organismic theory of evolution in the original spirit of Darwin’s struggle for existence. This kind of understanding must rely on an agential perspective on evolution, complementing and succeeding existing structural, functional, and processual approaches. I sketch a tentative outline of such an agential perspective, and present a survey of methodological and conceptual challenges that will have to be overcome if we are to properly implement it.


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