Saturday, December 04, 2010

Many Metabolisms, Many Origins?


An unspoken but widely held belief among both evolutionary biologists (and some "intelligent design" supporters) is the idea that life (or, to be more specific, living organisms and/or metabolic processes) originated once a very long time ago. Along with my fellow biology majors, I was taught this by William T. Keeton in introductory biology at Cornell, where we also were told that if life (or biomolecules) somehow spontaneously started again today, it would immediately be scarfed up by already living organisms.

This idea ultimately derives from the last paragraph of Darwin's Origin of Species, in which he proposed that
"There is grandeur in this view of life, with its several powers, having been originally breathed into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved." [Origin of Species, 1st edition, 1859]
Darwin asserted this partly to contrast his theory of evolution from that of Lamarck's, which included the idea that life was continuously arising spontaneously, generating new phylogenetic lines of organisms throughout deep evolutionary time. The discovery of the (almost) "universal" genetic code in the 1950s by Crick, Nirenberg, Holley, Khorana, et al provided strong evidence for the "one origin" hypothesis.

However, the fact that there is currently no evidence for an alternative "many origins" hypothesis doesn't necessarily support the conclusion that this hypothesis has been falsified. On the contrary, as the recent discovery by Felisa Wolfe-Simon of a "shadow arsenic metabolism" indicates, this lack of evidence is the result of lack of investigation, rather than actual lack of such origins. It is, in other words, quite possible that life (or at least biochemical processes similar to metabolic processes and molecules similar to "standard" biomolecules, and even cell-like structures incorporating both) is "originating" spontaneously all the time, but that we haven't noticed it because we haven't been looking. After all, nobody suspected the existence of an entire domain of living organisms (i.e. the Archaea) until Carl Woese starting looking two decades ago.

As J. B. S. Haldane — who formulated an early hypothesis for the origin of life — once quipped,
"[T]he Universe is not only queerer than we suppose, but queerer than we can suppose." [Haldane, J. B. S. (1927) Possible Worlds and Other Papers, page 227]
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As always, comments, criticisms, and suggestions are warmly welcomed!

--Allen

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Sunday, June 06, 2010

The Annotated Origin of Species


In November of 1859, the
London publishing house of John Murray
brought out the first edition of what would become the most famous and important work of science of the 19th century: Charles Darwin's On the Origin of Species. The first edition of 1,250 copies sold out in one afternoon (first edition copies today fetch over a hundred thousand dollars on the rare book market) and was eventually reprinted over the next fifteen years in five increasingly popular editions. The success of the Origin catapulted Darwin from a relatively unknown specialist in the taxonomy of barnacles to the most famous naturalist of the 19th century and became the most widely read (and most controversial) science text of all time.

Many historians of biology credit the Origin with founding the modern science of biology. Hence, it is very curious that the first edition of the Origin lacks what most scholars expect to find in such influential and widely respected works. Unlike most other books of its kind — including Darwin's other famous books, The Voyage of the Beagle (first published in 1839) and The Descent of Man (first published in 1871) — the Origin has virtually none of the usual "machinery" of a scholarly work. Although Darwin cites the findings and opinions of hundreds of naturalists worldwide in the Origin, he does not provide any footnotes or written citations to their published works. The first edition of the Origin also does not include a bibliography nor any listing of published references. And, despite focusing on the most visual of the natural sciences, the Origin contains only one illustration, a hand–drawn diagram of the branching pattern of descent that Darwin proposed for his theory of descent with modification (his term for what we now refer to as "evolution").

The reason for this surprising lack of documentation is well known: Darwin had been scooped on his theory of natural selection by a fellow English naturalist, Alfred Russel Wallace. In April of 1858, Wallace sent Darwin a letter that included a brief essay "On the Tendency for Varieties to Depart Indefinitely from the Original Type", in which Wallace anticipated virtually all of the major concepts of Darwin's theory of evolution by natural selection. Darwin had been working on his theory for over two decades, and had been writing the book that would eventually be published as the Origin for at least five years when he received Wallace's letter. Anxious to preserve his priority as the discoverer of natural selection and urged on to do so by his friends and fellow naturalists, Darwin rushed what he considered to be an "abstract" of his ideas into print in November of 1859. This "brief abstract", published without footnotes, illustrations, or bibliography, was the first edition of the Origin of Species by Means of Natural Selection.

The first edition of the Origin was a masterwork and is still published in its original form, without footnotes, illustrations, and bibliography. Reading it, one can still get a taste of the overwhelming scholarship with which Darwin supported what he called his "long argument" for descent with modification. However, to really appreciate how much of the science of natural history Darwin wove into his argument, one really needs to know what Darwin's sources were and how they were related to each other.

Presenting these sources and showing how Darwin marshaled them in his defense of his theory is the heart of James Costa's brilliant annotation of Darwin's classic, The Annotated Origin, published by Belknap Press of Harvard University Press. Brought out in celebration of the 150th anniversary of the publication of first edition of the Origin, Costa's annotated version more than compensates for the "missing" material in Darwin's original. The introduction to The Annotated Origin alone is worth the price of the book. In it, Costa presents a lightning biography of Darwin and a nuanced exploration of the reasons for his rush to publish in 1859. It also contains a reader's guide to the Origin, a book that is often difficult for modern readers who are unaccustomed to the density of Victorian prose. Costa then analyzes and annotates virtually every page of the Origin, including the title page, in which he provides a brief history of Darwin's illustrious publisher, John Murray, and his decision to print only 1,250 copies of what would eventually become his best-selling and most famous publication.

Costa's annotations run the gamut from personal anecdotes to hard-science references. He weaves together Darwin's own telegraphic notes in his unpublished notebooks, his correspondence, his other published works, and his autobiography, providing the reader with a wealth of information and insight. Tracking down each line of evidence becomes a kind of "exploration" in itself. One can follow threads of evidence that elucidate Darwin's views about nature, science, his fellow naturalists, and even such "taboo" subjects (at least in the Victorian era) as sex and the intimate details of family life.

Costa's annotations also provide a detailed framework for Darwin's argument, showing how the various explanations and examples are marshaled in such a way as to support Darwin's underlying argument for "descent with modification by means of natural selection." As just one example, consider Costa's annotations to the section of pigeon breeding in the first chapter of the Origin ("Variation Under Domestication"). Naïve readers of this chapter are sometimes puzzled by Darwin's emphasis on pigeon breeding and its relationship to his theory. But, as Costa points out, "[p]igeons provided a microcosm of Darwin's model of selection, as well as valuable data on development, correlation of traits, and reversion." Like so many of his Victorian contemporaries, Darwin raised pigeons at his country estate at Down House in Kent, and conducted dozens of breeding experiments to test his theories. Darwin pointed out that all of the various breeds of pigeons could be shown to have descended from the wild rock pigeon (Columba livia) by a process that we now refer to as artificial selection. Darwin constructed an argument by analogy that natural selection followed the same rules as artificial selection. And, since so many of his contemporaries (and potential readers) were also pigeon fanciers, he could be reasonably confident that they would be able to follow his argument without extensive explanation or citations of obscure references to the scientific literature.

Reading the first edition of Darwin's Origin of Species is a revelation. One catches the threads of Darwin's argument and follows his reasoning through to his startling (and sometimes troubling) conclusions. James Costa's masterful annotation of the Origin does much more. It supplies the scholarly apparatus that the first edition lacked and provides a coherent and comprehensive background for Darwin's arguments, as well as many fascinating insights into Darwin's personality, thought processes and research methods. No other scientist has been as exhaustively analyzed as Darwin, and no other published work of science has been as widely criticized or praised as the Origin of Species. Reading James Costa's Annotated Origin provides an even deeper appreciation for Darwin's achievement and its impact on science and society.

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As always, comments, criticisms, and suggestions are warmly welcomed!

--Allen

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Friday, April 16, 2010

More on Evolution and Human Free Will


Every summer I teach a seminar course at Cornell in which we examine the historical, philosophical, religious, and scientific implications of evolutionary theory. This summer our seminar course will once again consider the question: Is free will an illusion?

On the 15th of July, 1838, Charles Darwin began a notebook which he labeled as “M”, in which he intended to write down his correspondence, discoveries, musings, and speculations on “Metaphysics on Morals and Speculations on Expression”. On page 27 of that notebook, he wrote
“…one doubts existence of free will every action determined by hereditary constitution, example of others or teaching of others. (…man…probably the only [animal] affected by various knowledge which is not heredetary & instinctive) & the others are learnt, what they teach by the same means & therefore properly no free will. [Emphasis added]

In his private musing on the question of free will, Darwin came to the conclusion that human free will is an illusion, and that all of our actions (and, by extension, our thoughts and intentions) are the result of our “hereditary constitution” and “the example…or teaching of others.”

Some evolutionary biologists, notably William Provine of Cornell University, have followed Darwin’s lead and asserted that human free will is an illusion. Most philosophers disagree, asserting that free will is the principle difference between humans and non-human animals. Many Christian theologians go further, asserting that free will is the foundation of all human action, without which no rational ethics or theology is possible.

In our seminar course this summer we will take up this debate by considering two alternative hypotheses: (1) that human free will is real and can provide a basis for our morals and ethics, or (2) that human free will is an illusion, the capacity for which is a product of the same evolutionary processes that have shaped our anatomical and behavioral adaptations. Included in this debate will be an extended consideration of the hypothesis that the capacity for ethical decision making is an evolutionary adaptation that has evolved by natural selection. We will read from some of the leading authors on both sides of the subject, including George Ainslie, Daniel Dennett, Robert Kane, William Provine, Daniel Wegner, and Edward O. Wilson. Our intent will be to sort out the various issues at play, and to come to clarity on how those issues can be integrated into a perspective of the interplay between philosophy and the natural sciences.

Here are some particulars for the course:

INTENDED AUDIENCE: This course is intended primarily for students in biology, history, philosophy, religious studies, and science & technology studies. The approach will be interdisciplinary, and the format will consist of in-depth readings across the disciplines and discussion of the issues raised by such readings.

PREREQUISITES: None, although a knowledge of general evolutionary theory, evolutionary psychology, sociobiology, and the philosophy of human free will would be useful.

DAYS, TIMES, & PLACES: The course will meet on Tuesday and Thursday evenings from 6:00 to 9:00 PM in Mudd Hall, Room 409 (The Whittaker Seminar Room), beginning on Tuesday 29 June 2010 and ending on Thursday 5 August 2010.

CREDIT & GRADES: The course will be offered for 4 hours of credit, regardless of which course listing students choose to register for. Unless otherwise noted, course credit in BIOEE 4670 / BSOC 4471 can be used to fulfill biology/science distribution requirements and HIST 4150 / STS 4471 can be used to fulfill humanities distribution requirements (check with your college registrar's office for more information). Letter grades for this course will be based on the quality of written work on original research papers written by students, plus participation in class discussion. All participants must be registered in the Cornell Six-Week Summer Session to attend class meetings and receive credit for the course (click here for for more information and to enroll for this course). Registration will be limited to the first 18 students who enroll for credit.

REQUIRED TEXTS:

Ainslie, G. (2008) Breakdown of Will, Cambridge University Press, ISBN: 0521596947 (paperback: $34.99), 272 pages.

Dennett, D. (2004) Freedom Evolves, Penguin Books, ISBN: 0142003840 (paperback: $17.00), 368 pages.

Kane, R. (2005) A Contemporary Introduction to Free Will, Oxford University Press (USA), ISBN: 019514970X (paperback: $19.95), 208 pages.

Wegner, D. (2003) The Illusion of Conscious Will, MIT Press, ISBN-10: 0262731622 (paperback: $21.95), 419 pages.

Wilson, E. O. (2004) On Human Nature (Revised Edition), Harvard University Press, ISBN: 0674016386 (paperback: $22.00), 284 pages.

OPTIONAL TEXTS:

Darwin, Charles (E. O. Wilson, ed.) (2006) From So Simple a Beginning: Darwin's Four Great Books. W. W. Norton, ISBN-10: 0393061345 (hardcover, $39.95), 1,706 pages. Available online here.

Fisher, J., Kane, R., Pereboom, D., & Vargas, M. (2007) Four Views on Free Will, Wiley-Blackwell, ISBN: 1405134860 (paperback: $33.95), 240 pages.

Kane, R. (2001) Free Will (Blackwell Readings in Philosophy), Wiley-Blackwell, ISBN: 0631221026 (paperback: $33.95), 328 pages.

Wilson, E. O. (2000) Sociobiology: The New Synthesis (25th Anniversary Edition), Belknap Press, ISBN: 0674002350 (paperback: $44.00), 720 pages

Our summer seminar course is always fascinating, and often quite controversial (see this and this). Over the years we have explored many of the implications of Darwin's theory, and the participants have always found our discussions (perhaps they should be called "debates") enlightening. As always, the intent is not necessarily to reach unanimity, but rather for each participant to come to clarity on where they stand on the issues and to be able to defend that stance using evidence and rational argument.

So, please consider taking our seminar on free will this summer - the choice is yours!

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As always, comments, criticisms, and suggestions are warmly welcomed!

--Allen

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Friday, February 05, 2010

Darwin Day Petition Drive


Darwin Day is a global celebration of science and reason held on or around Feb. 12, the anniversary of the birthday of evolutionary biologist Charles Darwin. This year (2010) marks the 201st anniversary of the birth of Charles Darwin and the 151st anniversary of the publication of his most famous book, the Origin of Species.

As part of this year's commemoration of Darwin's birthday, the International Darwin Day Foundation has launched a petition drive to have President Obama issue a proclamation recognizing Darwin Day and the importance of Darwin's work to the science of biology.

Here's what the International Darwin Day Foundation has to say about this petition drive:
Please sign our petition urging President Obama to recognize Darwin Day!

We need our elected leaders to speak out about the importance of scientific knowledge and its contribution to the advancement of humanity, and send a signal that religious infiltration into our science classrooms will not be tolerated. That's why we're asking you to sign our petition urging President Obama to recognize Darwin Day.

Far-right extremists are using every trick in the book to keep the teaching of evolution out of science classes, and to the degree they are successful they are undermining American values of scientific inquiry and integrity.

Their thinly-veiled religious agenda will have negative effects on our society. Incomplete education about evolution in our classrooms sends the message that not only can the theory of natural selection be sidestepped, but all science can be muzzled if it doesn't neatly fit within a particular ideology. Failure to provide our children with a first rate science education will create future generations who are scientifically illiterate and unable to compete in the global market of ideas.

We need our elected leaders to speak out about the importance of scientific knowledge and its contribution to the advancement of humanity, and send a signal that religious infiltration into our science classrooms will not be tolerated. That's why we're asking you to sign our petition urging President Obama to recognize Darwin Day.

Darwin Day, celebrated every year on February 12, is a day in which people gather together to commemorate the life and work of Charles Darwin, who was born this day in 1809. Charles Darwin was the first to propose the scientific theory of evolution by natural selection—a theory that has done more to unify and bring understanding to the life sciences than any other. Darwin Day is a celebration of this discovery and of scientific progress.

Our petition asks President Obama to issue a proclamation on Darwin Day that honors Charles Darwin and his theory of evolution by natural selection and that calls on all Americans to preserve scientific discovery as a bedrock of our society. It also asks Americans to commemorate the day with appropriate events and activities.

Sign our petition today to let Obama know that you're on the side of science and you need him to be, too. If President Obama will issue a Darwin Day proclamation, it will send a strong signal to our elected officials in Congress and in the school boards that the American people want scientific integrity to be preserved.

So please sign our petition today and let your voice be heard!

Sincerely,
Roy Speckhardt
Executive Director
International Darwin Day Foundation
The International Darwin Day Foundation promotes public education about science and encourages the celebration of Science and Humanity throughout the global community.

Here is the text of a message to President Obama, urging him to proclaim February 12th as Darwin Day:
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Dear President Obama,

As an American who values scientific inquiry and integrity, I urge you to issue a presidential proclamation recognizing Darwin Day on February 12. Darwin Day is celebrated every year on the anniversary of Charles Darwin’s birthday in 1809, and is a day in which people gather together to commemorate his life and work. Charles Darwin was the first to propose the ground-breaking scientific theory of evolution by natural selection—a theory that has done more to unify and bring understanding to the life sciences than any other—and Darwin Day is a celebration of this discovery and of scientific progress.

I believe that issuing this proclamation will send a powerful message that scientific discovery and integrity in our society are top priorities—priorities that are needed now more than ever as extremists with narrow ideological agendas are attempting to undermine science in our schools.

Please stand with me and countless others who value science and discovery by issuing the following or a similar proclamation on Darwin Day.

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And here is the text of the proposed proclamation:
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A PROCLAMATION

Charles Darwin was the first to propose the scientific theory of evolution by natural selection. On Darwin Day, celebrated on the anniversary of Darwin’s birth on February 12, 1809, we celebrate the life and discoveries of Charles Darwin and express gratitude for the enormous benefits that scientific knowledge, acquired through human curiosity and ingenuity, has contributed to the advancement of humanity.

It is sobering to imagine where the human race would be today without advances in science. Science has helped us to live longer by enabling us to find cures for diseases and alleviating pain and suffering. It has allowed us to travel before unimaginable distances, to interact with and understand people of other cultures and recognize what makes us similar as well as what makes us unique. It has allowed us to understand and maneuver in our world and has provided us insight into the complexities of life.

Charles Darwin recognized the importance and power of scientific discovery, and perhaps no one has influenced our understanding about life on earth as much as he. Darwin was an English naturalist, who on his legendary five-year voyage on the HMS Beagle made important observations about the geological and zoological diversity of the lands he visited, which helped spark his theory of evolution by natural selection. Most of what we understand about the diversity of life and the process by which it has adapted and changed has come from his profound insights, and his contribution to the canons of science cannot be overstated.

On this anniversary of Darwin’s birthday, it is important to recognize the contributions he has made to the advancement of science. It is also important that we continue to educate future generations about evolution by natural selection in our science classrooms. We must not water down the significance of Darwin’s theory, nor the breadth of evidence supporting it, and we must at every turn challenge efforts to undermine science so that we can keep alive in our children and grandchildren the wonder of discovery and the eagerness to obtain knowledge.

Now, Therefore, I, Barack Obama, President of the United States of America, by virtue of the authority vested in me by the Constitution and laws of the United States, do hereby proclaim February 12, 2010, as Darwin Day. I call on all Americans to recognize the importance of Charles Darwin and his theory of evolution by natural selection, to endeavor to preserve scientific discovery and human curiosity as bedrocks of American society, and to commemorate this day with appropriate events and activities.

In Witness Whereof, I have hereunto set my hand this twelfth day of February, two thousand ten, and of the Independence of the United States of America the two hundred and thirty-fourth.

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I personally think that this petition drive is a good idea, and that if it succeeds it will add significantly to both the status of evolutionary biology in America and to President Obama's reputation as a staunch supporter of science. I hope you will to go to the International Darwin Day Foundation's website and sign their petition.

And have a great Darwin Day!

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As always, comments, criticisms, and suggestions are warmly welcomed!

--Allen

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Tuesday, November 24, 2009

The Longest Running Failed Prediction in Creationism


AUTHOR: G.R. Morton

SOURCE: Answers in Science

COMMENTARY: Allen MacNeill

First, today is the 150th anniversary of the original publication of Charles Darwin's Origin of Species. So many people have written about this event that it would be superfluous for me to write about it here. However, some of what has been written about the Origin lately, mostly by creationists and supporters of "intelligent design", is that Darwin's theory of evolution by natural selection is "crumbling" and will soon be "dead".

Admittedly, I have written recently that the "modern evolutionary synthesis" is dead (see here for more), but in doing so I have taken pains to point out that the theory of evolution itself is most assuredly not dead. On the contrary, it is very much alive. Indeed, it has never been more vigorous than it is today.

But that's not what the creationists are saying. What they're saying (or trying to say) is that the whole concept of evolution itself is dead: the Earth and everything on it was created a relatively short time ago, and even if life on Earth has changed (a little), all of that change has been guided by the deity of the Abrahamic religions (Judaism, Christianity, Islam, Mormonism, etc.) Indeed, just this morning a new podcast was launched at the website of the Discovery Institute, in which neo-Paleyist and ID creationist John West asserts once again that "Darwinism is dead".

Is this news? And is it new? How long have creationists been predicting the demise of Darwin's theory of evolution? Apparently, they've been doing so since a few decades before Darwin published it. G. R. Morton has compiled a short list of quote from creationists predicting the impending overthrow of the theory of evolution (you can read it here). He introduces his anthology of science denialism with this:

In recent reading of [Dr. William] Dembski and other ID proponents I saw them make a claim which has been made for over 40 years. This claim is one that the young-earthers have been making. The claim is that evolution (or major supporting concepts for it) is increasingly being abandoned by scientists, or is about to fall. This claim has many forms and has been made for over 162 years. This is a compilation of the claims over time. The purpose of this compilation is two-fold. First, it is to show that the claim has been made for a long, long time. Secondly, it is to show that entire careers have passed without seeing any of this movement away from evolution. Third, it is to show that the creationists are merely making these statements for the purpose of keeping hope alive that they are making progress towards their goal. In point of fact, no such progress is being made as anyone who has watched this area for the last 40 years can testify. The claim is false as history and present-day events show, yet that doesn't stop anyone wanting to sell books from making that claim.

Morton's quotations from creationists begins with a quote dating to 1825, 34 years before Darwin published the Origin of Species. Apparently, what many historians have asserted was true: that the idea of evolution was "in the air" in the mid-19th century, and that Darwin simply codified and provided evidence for an idea that was already becoming generally well-known and at least partially accepted. The fact that Alfred Russell Wallace came up with the same mechanism that Darwin did for descent with modification — natural selection — is further evidence for the idea that evolution was "in the air" at the time.

It still is, and even moreso. Not only has the theory of evolution not "crumbled", it is currently undergoing its most rapid expansion since 1859. Darwin's original theory was limited strictly to biological evolution, but now his theory is being extended into astrophysics, geology, economics, psychology, sociology, and even literature and art history. It is this tremendous success that upsets the opponents of Darwin's theory, and that impels them (in the face of overwhelming evidence to the contrary) that the most widely accepted, most generally applicable, and most analytically powerful theory in all of science is on its way out.

In other words (and true to their creationist roots), they stare reality in the face and deny it.

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As always, comments, criticisms, and suggestions are warmly welcomed!

--Allen

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Thursday, November 19, 2009

The Darwinian Revolution To Be Shown at Cornell


There will be a free public showing of The Darwinian Revolution video series at 4 PM on Tuesday 24 November 2009 in the large classroom (room 3330) of the Tatkon Center in Balch Hall. This presentation will take place on the 150th anniversary of the publication of Charles Darwin's Origin of Species, and is part of Cornell's celebration of the Darwin Bicentennial. The host of the video series, Cornell evolutionary biologist Allen MacNeill, will be on hand at the presentation to discuss the videos and answer questions about evolutionary biology in general, and about The Darwinian Revolution video series in particular.

The Darwinian Revolution is a series of six videos addressing the content and history of the theory of evolution. Produced by Cornell's CyberTower program and hosted by evolutionary biologist Allen MacNeill, the six-part series includes an overview of evolutionary biology, a history of the concept of evolution in western civilization, a brief consideration of Lamarck's theory of evolution via the inheritance of acquired characteristics, a detailed look at Darwin's theory of evolution by natural selection, a brief exploration of Mendel's theory of particulate inheritance and its role in the origins of the "modern evolutionary synthesis", and a look forward at the future prospects for evolutionary biology. The series was videotaped at the Museum of the Earth in Ithaca, New York, and features interviews with museum director and paleontologist Warren Allman and Cornell historian of science William Provine.

This public showing of The Darwinian Revolution is free and open to the general public. It is cosponsored by Cornell's CyberTower program, in cooperation with the Museum of the Earth and Cornell's Tatkon Center as part of this year's celebration of the 200th anniversary of the birth of Charles Darwin and the 150th anniversary of the publication of Darwin's Origin of Species.

The Darwinian Revolution video series can also be viewed online here. For more information about the video series, go here.

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As always, comments, criticisms, and suggestions are warmly welcomed!

--Allen

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Saturday, November 07, 2009

Why I Post Comments on Creationist and ID Blogs


A fellow blogger asked me recently "Why waste your time posting [at creationist and ID blogs] at all? You do not seem to have a receptive audience." Other people ask me why I generally treat creationists and ID supporters with respect, rather than taking every opportunity to heap scorn and ridicule upon them. Here's what I hope is an adequate explanation to both of these questions.

I post comments at creationist and ID blogs (when I have the time, which is definitely not all the time) because I expect that there are a lot of people who read these comments without participating directly in such debates. This is why I try to keep as civil a tone as possible, especially when my opponents use ad hominem arguments, character assassination, insults, and ridicule. The contrast between their tactics and mine undermines their credibility (and, by extension, that of their soi dissant “science”). Indeed, some commentator’s comments are so insulting that I refuse to respond to them, and I believe that this does not pass unnoticed by readers who are not yet irrationally committed to one side or the other.

Also, as a teacher (currently in my 35th year of teaching at Cornell University), I feel a professional responsibility to correct some of the more egregious misrepresentations and misunderstandings of the science of evolutionary biology which are promulgated at creationist and ID blogs. Some of these misrepresentations clearly stem from ignorance, and in a gratifying number of cases some the commentators whom I have corrected have thanked me for the information and references I have provided.

However, other misrepresentations are apparently part of a deliberate and ongoing effort to distort the public record and deliberately misrepresent the relevant scientific information for political and religious purposes. I strongly believe that this kind of mendacity should be exposed for what it is, and for what it isn’t (i.e. it isn’t science).

Furthermore, I have always tried to emulate the long-standing Quaker tradition of “speaking truth to power”, which is the opposite of “preaching to the choir”. It means confronting directly what I perceive to be misunderstanding (and what I perceive to be deliberate mendacity), rather than limiting my interactions to people with whom I already agree. I agree with Charles Darwin, who said that he paid much more attention to the criticisms of people who disagreed with him than the praise of people who agreed with him. Like Darwin, I find that debating with people with whom I disagree helps me greatly to clarify my own position on the relevant issues, and to help my opponents clarify theirs. I believe that it would be a terribly boring (and non-progressive) world in which everyone agreed upon every subject, and so I am grateful to some of the commentators here for helping me improve my understanding of the relevant issues and my ability to argue persuasively for what I perceive to be the best supported position.

Like Hegel, I believe that genuine synthesis usually arises out of the clash between thesis and antithesis, and that progress in human understanding is almost always gained at the price of diligence, honesty, and honor. As my fencing master often says, “a gentleman is always gracious and dignified in defeat, humble and gentle in victory”. I have to the best of my ability tried to account myself according to this standard of conduct, and believe that the world would be a better place if everyone tried to do so.

Finally, to the best of my ability, I try to “fight the good fight” in defense of what I understand to be an accurate description of reality. I expect my opponents to do the same. When they do, I tell them so. Indeed, if they do a good job, I congratulate them, especially if they persuade me to change my mind, as the result of sufficiently convincing arguments. However, when my opponents depart from honorable and honest argumentation and stoop to ad hominem attacks, character assassination, insults, and ridicule, I call them on it and I inform them in no uncertain terms that I will no longer respond to them.

The same principles apply to this blog, and can be read here.

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As always, comments, criticisms, and suggestions are warmly welcomed!

--Allen

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Wednesday, November 04, 2009

Rescuing Darwin from His Detractors (and Supporters)


TITLE: Rescuing Darwin

AUTHOR: Paul Fayter

SOURCE: The United Church Observer

SUMMARY: Ever since the Origin of Species was first published 150 years ago, scientists and creationists have tried to spin the religious views of Charles Darwin their way.

COMMENTARY: This article by Paul Fayter (appearing on a website sponsored by The United Church Observer, a Christian organization) directly contradicts many of the assertions made by some evolutionary biologists and most ID supporters, including most of the egregious distortions in Benjamin Wiker's recent book,
The Darwin Myth: The Life and Lies of Charles Darwin.


Unlike Wiker and most ID supporters, Paul Fayter has spent a significant fraction of his professional life studying Charles Darwin and his work. Here's what he found:

- Darwin was not an atheist when he wrote the Origin of Species and therefore could not possibly have written it as an "apology" for his atheism;

- the most important factors in his eventual agnosticism were 1) the death of his daughter, Annie, and 2) his view that a benevolent deity would not have created a world with such horrors as parasites (and the indiscriminate death of innocents);

- that despite his agnosticism, Darwin remained a "practicing" member of both the Church of England and his local parish church;

- that despite his embrace of the science of evolutionary theory, he did not descend into a life of libertinism and immorality, nor did he distort his theory to support any political position (including eugenics or "social darwinism");

- he remained a dedicated scientist, a loving husband, a doting father, a devoted member of his parish, and an unwavering opponent of slavery and its concomitant evils; and

- he also remained what would now be considered to be a "theistic evolutionist" until his death.

Here is Faytor's conclusion:

Darwin was able to reconcile the power and glory of a good and loving God with nature's cold indifference and manifest cruelty - the infamous and pitiless "survival of the fittest" - by viewing struggle, pain, suffering and death not as the direct will of God but as the result of the impersonal operation of universal laws. The process of evolution by means of natural selection was deadly and wasteful, and yet, as Darwin concluded in The Origin, it had a higher, nobler purpose. Higher species would evolve. The Creator - the God of scientific theism - lawfully drew good out of evil and progress out of pain.

Near the end of his life, Darwin thought it impossible to conceive that "this immense and wonderful universe" was "the result of blind chance or necessity." No, it still seemed that the world had been willed into being. "I feel compelled to look to a First Cause having an intelligent mind in some degree analogous to that of man," he wrote in his autobiography, "and I deserve to be called a Theist." At the same time, Darwin believed that "the mystery of the beginning of all things" was simply unsolvable; and so he also declared, "I for one must be content to remain an agnostic."

All of this directly contradicts Wiker's biography of Darwin and the opinions of most ID supporters. Demonizing Darwin, especially when there are very good (and unbiased) biographies of Darwin (not to mention his own, very candid autobiography) does nothing to harm Darwin's scientific reputation. By contrast, the fundamental misunderstanding among many ID supporters of how real science is done does quite a bit to harm ID's scientific reputation.

Neither evolutionary biology nor ID will be advanced or forestalled as scientific enterprises by pro- or anti-hagiographies of Charles Darwin (or any other individual scientist or ID supporter). This will happen only when sufficient field and laboratory work has been done and the results published in reputable scientific journals to decide between them. So far ID supporters have chosen to pursue a political program and the vilification of world-renowned scientists, rather than do the requisite science. Until they decide to abandon ad hominem arguments and actually focus on the science, they will remain (like "scientific creationism") a cautionary footnote to the history of the triumph of evolutionary biology.

In closing, I find it quite significant that only ID supporters refer to Darwin as a "little God". Like all evolutionary biologists, I consider him to have been a dedicated and talented observer of nature and a genuinely good person, but (like all of us) a plain and simple (and, of course, fallible) human.

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As always, comments, criticisms, and suggestions are warmly welcomed!

--Allen

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