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It's Dogged as Does It [Darwin in the Galápagos]
Scientific American ^ | February 2006 issue | Michael Shermer

Posted on 01/22/2006 4:28:17 AM PST by PatrickHenry

Among the many traits that made Charles Darwin one of the greatest minds in science was his pertinacious personality. Facing a daunting problem in natural history, Darwin would obstinately chip away at it until its secrets relented. His apt description for this disposition came from an 1867 Anthony Trollope novel in which one of the characters opined: "There ain't nowt a man can't bear if he'll only be dogged.... It's dogged as does it." Darwin's son Francis recalled his father's temperament: "Doggedness expresses his frame of mind almost better than perseverance. Perseverance seems hardly to express his almost fierce desire to force the truth to reveal itself."

Historian of science Frank J. Sulloway of the University of California, Berkeley, has highlighted Darwin's dogged genius in his own tenacious efforts to force the truth of how Darwin actually pieced together the theory of evolution. The iconic myth is that Darwin became an evolutionist in the Galápagos when he discovered natural selection operating on finch beaks and tortoise carapaces, each species uniquely adapted by food type or island ecology. The notion is ubiquitous, appearing in everything from biology textbooks to travel brochures, the latter inveigling potential travelers to visit the mecca of evolutionary theory and walk in the tracks of St. Darwin the Divine.

In June 2004 Sulloway and I did just that, spending a month retracing some of Darwin's fabled footsteps. Sulloway is one sagacious scientist, but I had no idea he was such an intrepid field explorer until we hit the lava on San Cristóbal to reconstruct the famous naturalist's explorations there. Doggedness is the watchword here: with a sweltering equatorial sun and almost no freshwater, it is not long before 70-pound water-loaded packs begin to buckle knees and strain backs. Add hours of daily bushwhacking through dry, dense, scratchy vegetation, and the romance of fieldwork quickly fades.

Yet the harder it got, the more resolute Sulloway became. He actually seemed to enjoy the misery, and this gave me a glimpse into Darwin's single-mindedness. At the end of one particularly grueling climb through a moonscapelike area Darwin called the "craterized district" of San Cristóbal, we collapsed in utter exhaustion, muscles quivering, and sweat pouring off our hands and faces. Darwin described a similar excursion as "a long walk."

Death permeates these islands. Animal carcasses are scattered hither and yon. The vegetation is coarse and scrappy. Dried and shriveled cacti trunks dot a bleak lava landscape so broken with razor-sharp edges that moving across it is glacially slow. Many people have died, from stranded sailors of centuries past to wanderlust-struck tourists of recent years. Within days I had a deep sense of isolation and of life's fragility. Without the protective blanket of civilization, none of us is far from death. With precious little water and even less edible foliage, organisms eke out a precarious living, their adaptations to this harsh environment selected for over millions of years. These critters are hanging on by the skin of their adaptive radiations. A lifelong observer of, and participant in, the creation-evolution controversy, I was struck by how clear the solution is in these islands: creation by intelligent design is absurd. Why, then, did Darwin depart the Galápagos a creationist?

The Darwin Galápagos legend is emblematic of a broader myth that science proceeds by select "eureka!" discoveries followed by sudden revolutionary revelations, whereupon old theories fall before new facts. Not quite. Paradigms power perceptions. Sulloway discovered that nine months after departing the Galápagos, Darwin made this entry in his ornithological catalogue about his mockingbird collection: "When I see these Islands in sight of each other, & possessed of but a scanty stock of animals, tenanted by these birds, but slightly differing in structure & filling the same place in Nature, I must suspect they are only varieties." That is, similar varieties of fixed kinds, rather than the myth that he already knew that evolution was responsible for the creation of separate species. Darwin was still a creationist! This quotation explains why Darwin did not even bother to record the island locations of the few finches he collected (and in some cases mislabeled) and why, as Sulloway has pointed out, these now famous "Darwin finches" were never specifically mentioned in On the Origin of Species.

Darwin similarly botched his tortoise observations. Later, he recalled a conversation he had had while in the islands with the vice governor Nicholas O. Lawson, who explained that for the tortoises Lawson "could with certainty tell from which island any one was brought. I did not for some time pay sufficient attention to this statement, and I had already partially mingled together the collections from two of the islands." Worse, as Sulloway recounts humorously, Darwin and his mates ate the remaining tortoises on the voyage home. As Darwin later confessed: "I never dreamed that islands, about fifty or sixty miles apart, and most of them in sight of each other, formed of precisely the same rocks, placed under a quite similar climate, rising to a nearly equal height, would have been differently tenanted."

Through careful analysis of Darwin's notes and journals, Sulloway dates Darwin's acceptance of the fact of evolution to the second week of March 1837, after a meeting Darwin had with the eminent English ornithologist John Gould, who had been studying his Galápagos bird specimens. With access to museum ornithological collections from areas of South America that Darwin had not visited, Gould corrected a number of taxonomic errors Darwin had made (such as labeling two finch species a "Wren" and an "Icterus") and pointed out to him that although the land birds in the Galápagos were endemic to the islands, they were notably South American in character.

Darwin left the meeting with Gould, Sulloway concludes, convinced "beyond a doubt that transmutation must be responsible for the presence of similar but distinct species on the different islands of the Galápagos group. The supposedly immutable 'species barrier' had finally been broken, at least in Darwin's own mind." That July, Darwin opened his first notebook on Transmutation of Species, in which he noted: "Had been greatly struck from about Month of previous March on character of S. American fossils -- and species on Galapagos Archipelago. These facts origin (especially latter) of all my views." By 1845 Darwin was confident enough in his data to theorize on the deeper implications of the Galápagos: "The archipelago is a little world within itself, or rather a satellite attached to America, whence it has derived a few stray colonists, and has received the general character of its indigenous productions.… Hence both in space and time, we seem to be brought somewhat near to that great fact--that mystery of mysteries--the first appearance of new beings on this earth."

For a century and a half, Darwin's theory has steadfastly explained more disparate facts of nature than any other in the history of biology; the process itself is equally dogged, as Darwin explained: "It may be said that natural selection is daily and hourly scrutinising, throughout the world, every variation, even the slightest; rejecting that which is bad, preserving and adding up all that is good; silently and insensibly working, whenever and wherever opportunity offers." Doggedly so.


TOPICS: Culture/Society; Philosophy
KEYWORDS: crevolist; evolution
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To: dread78645

LOL!

Nobody's mentioned Thermodynamics lately, either.

That one lie really bothers me, though. In part because it's been so thoroughly debunked, even by creationist sites, and in part because it's not relevant.

Even if Darwin had "found religion" and somehow decided to deny his own work on his deathbed, it wouldn't change the validity of the theory. It wouldn't change the evidence. It wouldn't change the support. It wouldn't change the reality.

And yet, they keep dragging that old lie out as though it could possibly mean anything even if true. The ultimate in wishful thinking.


41 posted on 01/22/2006 1:32:59 PM PST by highball ("I find that the harder I work, the more luck I seem to have." -- Thomas Jefferson)
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To: mlc9852
I just prefer to consider all possibilities.

Really? I've never noticed you giving 10 seconds open-minded consideration of evolution. Just the same old same old every time.

42 posted on 01/22/2006 1:55:20 PM PST by Thatcherite (More abrasive blackguard than SeaLion or ModernMan)
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To: highball
And yet, they keep dragging that old lie out as though it [Darwin's deathbed recantation] could possibly mean anything even if true.

That's because they don't have the first clue what science is. They imagine that "Darwinism" is a religion that relies on nothing but Darwin's "revelations" (plus a few bogus fossils like Piltdown Man). That's how they see it. Looking at things that way, if Darwin had denied evolution, that would cause his followers to doubt their "faith." An analogy would be if Moses had, on his deathbed, confessed that he made up the story about getting the Ten Commandments from God.

Alas for the creationists, Darwin's work isn't theology; it's science. It relies on objectively verifiable data. Therefore his personal recantation wouldn't mean anything -- even if he actually had lost his marbles at the end and reverted to creationism. Just as Galileo's actual recantation doesn't change anything about the evidence for the solar system.

43 posted on 01/22/2006 1:57:37 PM PST by PatrickHenry (Virtual Ignore for trolls, lunatics, dotards, scolds, & incurable ignoramuses.)
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To: Thatcherite
I highly doubt humans descended from ape-like creatures. I'm open to everything else.
44 posted on 01/22/2006 1:58:31 PM PST by mlc9852
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To: mlc9852
I highly doubt humans descended from ape-like creatures. I'm open to everything else.

Everything else? eg...

A 4.5 billion year old earth?

A 14 billion year old universe?

No global flood in the last several-hundred million years?

No global ecology saved by 8 people on an ark?

The common descent of all life on earth *except* the human race?

Are you open to all of those propositions?

45 posted on 01/22/2006 2:01:27 PM PST by Thatcherite (More abrasive blackguard than SeaLion or ModernMan)
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To: Thatcherite

A 4.5 billion year old earth?

Yes - maybe + - a billion here or there

A 14 billion year old universe?

Yes - probably older

No global flood in the last several-hundred million years?

Will wait and see if Noah's ark is discovered

No global ecology saved by 8 people on an ark?

Not sure what you mean by global ecology

But what I believe doesn't affect anyone else. Humans have intelligence and common sense and we can arrive at different conclusions.

The common descent of all life on earth *except* the human race?

No problem with the common descent of species.


46 posted on 01/22/2006 2:06:18 PM PST by mlc9852
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To: mlc9852

I think what he means by "global ecology" is the fact that if there was a global flood as the story tells, all the life on earth would have arisen from the specimens contained on the arc.

That's why I never understood why Adam and Eve were such a big deal - if the stories are true, we're as much children of Noah as we are children of Adam, no? ;-)

In any case, there's no evidence for it. In fact, speciation would seem to discount any notion of a global flood in the last several million years.


47 posted on 01/22/2006 2:13:16 PM PST by highball ("I find that the harder I work, the more luck I seem to have." -- Thomas Jefferson)
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To: highball
"In fact, speciation would seem to discount any notion of a global flood in the last several million years."

There have been many local floods that scientists agree on - what would be the difference?
48 posted on 01/22/2006 2:18:48 PM PST by mlc9852
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To: PatrickHenry

I wonder if John Gould is any kin to the late Stephen J. Gould.


49 posted on 01/22/2006 2:55:04 PM PST by Virginia-American
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To: Virginia-American
Donno. I found a few websites that mention them both, but there's no mention that they're related.
50 posted on 01/22/2006 3:03:09 PM PST by PatrickHenry (Virtual Ignore for trolls, lunatics, dotards, scolds, & incurable ignoramuses.)
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To: PatrickHenry

As always you have provided a good article for thought, and throughout the thread, have also provided valuable links for further reading...

Many thanks...


51 posted on 01/22/2006 3:49:20 PM PST by andysandmikesmom
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To: mlc9852
Not sure what you mean by global ecology

"global" (a.) - worldwide

"ecology" (n) - a system of interacting plants and animals in a particular environment

52 posted on 01/22/2006 4:33:33 PM PST by Oztrich Boy (Fear is the path to the dark side. Fear leads to anger. Anger leads to hate. Hate leads to suffering)
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To: Oztrich Boy

I am not sure about vegetation. I'll have to read up on what affects a flood would have.


53 posted on 01/22/2006 4:50:31 PM PST by mlc9852
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To: mlc9852

54 posted on 01/22/2006 5:03:06 PM PST by Oztrich Boy (Fear is the path to the dark side. Fear leads to anger. Anger leads to hate. Hate leads to suffering)
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To: mlc9852
"I am not sure about vegetation. I'll have to read up on what affects a flood would have."

Assuming a global flood measured in months (which I do not believe BTW), there would be many plant extinctions, but representative species of most major groups would survive as seeds. There would be a major shakeup for a number of reasons. Many seeds would be transported to new regions, established forests that previously smothered the competition would be cleared and potentially colonized by new species etc. It would seem that spore bearing plants would be hit the hardest as spores on the whole are not nearly as durable.
55 posted on 01/22/2006 5:08:38 PM PST by ndt
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To: Oztrich Boy

Salinization would only be a problem if the water evaporated rather then got sucked up by the mouth of God as would be assumed by a flood myth.


56 posted on 01/22/2006 5:10:48 PM PST by ndt
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To: ndt

If spores were in the air and floating, seems they could have ended up spread out quite a distance.


57 posted on 01/22/2006 5:18:05 PM PST by mlc9852
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To: ndt

I don't believe the Bible says that the flood waters got sucked up by the mouth of God. What version is that in?


58 posted on 01/22/2006 5:19:05 PM PST by mlc9852
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To: Virginia-American

No, they're not related. Stephen Gould was the grandson of Hungarian-Jewish immigrants.


59 posted on 01/22/2006 5:42:56 PM PST by RightWingAtheist (Creationism Is Not Conservative!)
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To: mlc9852
"If spores were in the air and floating, seems they could have ended up spread out quite a distance."

True, but most spore would not survive being in or on the water for that long. They are very prone to fungal attack.
60 posted on 01/22/2006 5:59:40 PM PST by ndt
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