Is “The Imminent Demise of Evolution” still imminent?

Ten years ago, in 2006, intelligent design creationist William Dembski predicted that in a decade evolution would be toast:

LOUISVILLE, Ky. (AP) – To William Dembski, all the debate in this country over evolution won’t matter in a decade.

By then, he says, the theory of evolution put forth by Charles Darwin 150 years ago will be “dead.”

Yeah, well…

Meanwhile I stumbled upon this today (dated 11-17-2016) from young Earth creationist Richard William Nelson:

Despite a flood of challenges since the publication of The Origin of Species in 1859 by Charles Darwin and more than 150 years of unprecedented scientific efforts in the history of mankind to prove otherwise, the evidence examined in nature tooled with unprecedented technology continues to be compatible with the Genesis record written by Moses…

…Evolution, once a theory in crisis, is now in crisis without even a cohesive unifying theory.

Biological evolution exists only as a philosophy, not a science.

For a long list of creationists predicting the death of evolution see this following:

The Imminent Demise of Evolution: The Longest Running Falsehood in Creationism by Glen Morton

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Secular Museum Blunder

To demonstrate once again that I am an equal opportunity critic, here is a nit I have to pick with a secular museum, namely the Riverside Metropolitan Museum located in downtown Riverside, CA. It is a small museum and most of its limited public floorspace is taken up by displays dealing with Native American culture and artifacts. However it also has a number of displays on natural history, primarily that of the mountains & deserts in Riverside County. It is near some of these displays I found the following stuck to a wall:

Rhamphorhynchus_at_RMM

And here is the lone label seen in the bottom right-hand corner:

Cuviers_pterodactyl

It reads, “Baron Cuvier’s Pterodactyl“, apparently a reference to the fact that it was the “father of paleontology” Georges Cuvier who dubbed one of the earliest discovered pterosaur fossils “Ptéro-Dactyle”.

Yeah, the problem is though the cast of the fossil accompanying the label is very clearly not of the genus Pterodactylus named by Cuvier. Rather it is a cast of a RhamphorhynchusHere for comparison is the holotype specimen of Pterodactylus:

Pterodactylus_holotype_w-arrow

The red arrow points to Pterodactylus’ rather diminutive tail, which stands in rather stark contrast to Rhamphorhynchus’ long kite-like tail which ends in a diamond shaped vane (see above). 

Amusingly this is not the first time that these two genera have been confused. Apparently Rhamphorhynchus was originally misidentified as a species of Pterodactylus but after a few rounds of reclassification finally ended up as its own genus by the hand of Richard Owen 1861.

So a wag of my finger to the Riverside Metropolitan Museum; you need to fact check your displays.

Marriage Equality at last!

I cannot let this wonderful historic day go unremarked upon here on PCwP. The Supreme Court of the United States has ruled in favor of marriage equality for all Americans straight or gay! Good on the SCOTUS majority! Well done! Here is a link to their official decision in the Obergefell v. Hodges case.

As for the SCOTUS minority, congratulations, you will go down in history as those on the wrong side of the fight for freedom, equality, and humanity.

Happy Lincoln & Darwin Day!

The Emancipator and the Evolutionizer, together again!!!

Happy Lincoln & Darwin Day everyone!!!

Lincol_Darwin_day - Copy

From the Inbox: Did Stephen Jay Gould fabricate evidence of Louis Agassiz’s racism?

This one is from an e-mail sent to me via my neglected website over at commondescent.net regarding a page I have there that is mostly a bunch of quotes from Charles Darwin on the subject of race and slavery. The point of the page (that I originally created over a decade ago) was to counterbalance creationists’ never-ending demonization of Darwin as some sort of rabid racist—who was somehow responsible for racism and genocide—by the use of selective quotation of his writings (for example, Bergman 1997).

Anyway, someone going by “ML” writes:

ML: Why do Atheists get so upset when a Theist speaks about Darwin being Racist?

Atheism or theism does not enter into this, at least not inherently. I would think that anyone, theist or atheist, who interested in science and history would be upset by how professional creationists use invalid reasoning and false or misleading historical narratives to attack both evolutionary theory and historical figures involved in its development.

In the case of the claims that Darwin was somehow particularly racist, creationists are attempting to poison the well against evolution by claiming that the founder of evolutionary biology had some objectionable and/or erroneous views. They are arguing, in essence, that since Darwin was a racist evolutionary theory is suspect.  This is form of an ad hominem fallacy*.

Whether or not Darwin was a racist is completely irrelevant to the question of evolutionary theory’s validity. It stands or falls on its own merits regardless of what Darwin thought—for example, Isaac Newton believed in alchemy but this in and of itself does nothing to cast doubt on his laws of motion.

Logical fallacies aside the creationists’ treatment of Darwin on this subject is also simplistic and disingenuous in both the way they exaggerate Darwin’s supposed racism relative to his peers—well-to-do white men of the early to mid-nineteenth century—and in how they conveniently ignore clear cases of racism in their own camp (more on this shortly).  

[*Side note: creationists typically go further and attempt to argue that evolutionary theory itself is inherently racist or must logically lead to racism. That however that topic is for another time.]

ML: Racism is simply thinking you are superior to another race. One does not have to wish another race harm to be a Racist.

Why don’t you stop confusing the issue and trying to downplay the reality that Darwin was in fact racist.  He thought that whites were superior in many ways to blacks. That is RACISM.

I am not attempting to downplay the reality of anything. I am trying to be both factually and historically accurate. My personal opinion is that from a modern perspective Darwin probably was somewhat racist; however this is judgment that has to be inferred from a number of conflicting things he wrote on the subject. Some things he wrote—especially if they are taken out context of both history and his larger writings—seem to be racist in nature. However, he also wrote many things about race that were very egalitarian particularly in comparison with views of many of his contemporaries.

Given this, I think it is unfair and dishonest to single Darwin out for special criticism in this regard, especially if those doing so leave out evidence of more clear-cut racism on the part of their own intellectual predecessors.

ML: One also does not have to believe slavery is right or wrong to be a Racist.

That is true, one would have to look at the reasons an individual gives for why they condemned slavery. Some opposed slavery on the basis that the institution of slavery had negative effects on slave owners and white society in general. Others did so out of a concern for those enslaved (and of course many opposed slavery for both reasons).

I think it is fair to say that while someone who opposed slavery largely out of concern for those enslaved might still be a racist, they are probably not as racist as someone who either opposed it primarily out of concern for slaver owners or who did not oppose it at all (even arguing in its favor).

ML: Your article is so biased its pathetic.

Insults, that’s nice. You are going to have to do better than that ML. However, I will admit that the page could probably do with some expansion and updating.

ML: Quoting Louis Agassiz in a letter to his mother (1846), quoted in Gould, Stephen The Mismeasure of Man (1981) p. 44-45,

Stephen Gould IS AN EVOLUTIONARY BIOLOGIST AND AN ATHEIST!! What a source you got there!

A Letter that no one knows it really existed because it just so happens the only person who ever heard of it happens to be an ATHEIST.

Here we have yet another ad hominem fallacy, i.e., the source is an evolutionary biologist and an atheist, therefore it cannot be trusted.

Sorry but the fact that someone has delusional beliefs regarding the relative honesty of either evolutionary biologists (a category that includes a number of Christians btw) or atheists, does not constitute Prima facie evidence that there is any reason to doubt the veracity of the quote as given by Gould.

What’s more, while many—including myself—have taken issue with Gould on any number of subjects, I am unaware of any serious critic ever having suggested that Gould fabricated evidence whole cloth to support his views.  So even on an individual level, there is no reason to take seriously the suggestion that Gould was in the habit of perpetrating fraud.

Of course, anyone who knows me knows that I cannot leave it at that (let’s see, where did I leave my BFG 9000).

These accusations of fraud ML is making regard a quote from the 19th century paleontologist Louis Agassiz that I gave as an example of unambiguous racism on the part of one of Darwin’s creationist contemporaries. Here is the quote in question, which comes from a letter Agassiz wrote to his mother:

It was in Philadelphia that I first found myself in prolonged contact with Negroes; all the domestics in my hotel were men of color. I can scarcely express to you the painful impression that I received, especially since the feeling that they inspired in me is contrary to all our ideas about the confraternity of the human type (genre) and the unique origin of our species. But truth before all. Nevertheless, I experienced pity at the sight of this degraded and degenerate race, and their lot inspired compassion in me in thinking that they were really men. Nonetheless, it is impossible for me to repress the feeling that they are not of the same blood as us. In seeing their black faces with their thick lips and grimacing teeth, the wool on their head, their bent knees, their elongated hands, I could not take my eyes off their face in order to tell them to stay far away. And when they advanced that hideous hand towards my plate in order to serve me, I wished I were able to depart in order to eat a piece of bread elsewhere, rather than dine with such service. What unhappiness for the white race ―to have tied their existence so closely with that of Negroes in certain countries! God preserve us from such a contact.” (Agassiz, 1846, Emphasis mine)

ML states that no one knows if the letter Gould claims to be quoting from even exists, implying that Gould may have made this quote up. Is there anyway for us to discern whether or not this might be the case, or are we forever lost in perpetual doubt?

Well we could start by seeing what Gould says about the source of this quote:

Agassiz had never seen a black person in Europe. When he first met blacks as servants at his Philadelphia hotel in 1846, he experienced a pronounced visceral revulsion. This jarring experience, coupled with his sexual fears about miscegenation, apparently established his conviction that blacks are a separate species. In a remarkably candid passage, he wrote to his mother from America: […quote given above – TB…] The standard Life and Letters, compiled by Agassiz wife, omits these lines in presenting an expurgated version of this famous letter. Other historians have paraphrased them or passed them by. I recovered this passage from the original manuscript in Harvard’s Houghton Library and have translated it, verbatim, for the first time so far as I know. (Gould 1981, p. 44-45)

Uh oh, “other historians”, “original manuscripts” at Harvard; it is starting to look bad for ML’s fraud hypothesis.

OK, let’s take a look at what historian Edward Lurie’s biography of Agassiz might contain:

After observing Negroes for the first time during a visit to Philadelphia late in 1846, Agassiz confided to his mother:

I hardly dare to tell you the painful impression I received, so much are the feelings they [Negroes] gave me contrary to all our ideas of the brotherhood of man and unique origin of our species. But truth before all. The more pity I felt at the sight of this degraded and degenerate race, the more . . . impossible it becomes for me to repress the feeling that they are not of the same blood as we are. (Lurie 1960, pp. 256-257)

While not identical, it seems clear that this quote, by Lurie given in 1960, is from the same source as Gould’s twenty-one years later.

Lurie give as a source as: “Agassiz to Rose Agassiz, December 2, 1846, Agassiz Papers, Houghton Library”, which means that both he and Gould claim their source is an 1846 letter from Agassiz to his mother.

Now at this point I figured I would have to stop and argue that this was sufficient evidence to refute ML’s insinuation since I do not live in the vicinity of Harvard and so could not go there and check their collection for the letter.

However, this is the age of the internet and after some poking around I discovered that Harvard’s Houghton Library not only lists the material in their Agassiz collection they also have scans of the original documents including…

 Wait for it…

 The letter from Agassiz to his mother dated December 2 1846.

Now the scans aren’t great and the letter is in French (differing interpretations of which accounts for the minor differences between Lurie and Gould’s quotations) but they are there for anyone, ML included, to read for themselves.

I did, and despite the fact that my French is extremely limited I was able to find the passage in question starting bottom third or so of page 13 and ending on page 14 (you gotta love the interwebs).

Given this, I am sure we can expect a retraction from ML regarding this libel against Gould.

References

Agassiz, Louis (1846) A letter to Rose M. Agassiz, quoted in Gould, Stephen (1981) The Mismeasure of Man, W.W. Norton & Company, NY,  p. 44-45

Bergman, Jerry (1997) “Evolution and the Origins of the Biological Race Theory“, Journal of Creation, 7(2):155–168

Gould, Stephen Jay (1981) The Mismeasure of Man, W.W. Norton & Company, NY

Lurie, Edward (1960) Louis Agassiz: A life in science, Johns Hopkins University Press (1988)

Goodbye Neil…

One of my earliest memories is from the day after my fourth birthday in July of 1969. It is just flashes of my parents being very excited about something and images of a large rocket on a TV, it was, of course, the launch of Apollo 11 which carried the first humans to land on the Moon.

Yesterday we have lost the Commander of Apollo 11, Neil Armstrong (1930–2012), however as long as long as our species endures something of him should endure with us, the memory of the first person to set foot on another world.

Goodbye Commander and thank you for risking it all to take that giant leap for mankind.

[A bittersweet coincidence of sorts. I didn’t hear of Armstrong’s death until early Sunday morning because my wife and I were watching a marathon of old Star Trek shows (Enterprise/Voyager/DS9).]

SMBC does it again

Saturday Morning Breakfast Cereal that is:

[Hat tip to Michael Barton.]

Uh oh, I may not be legal

To be filed under “Better Know Your Blogger”:

The archaeological dig being conducted by my mother at my parents house continues. Unfortunately this time she has unearthed evidence that I may not be a properly licensed Dinosaur Hunter (at least in the state of Utah)!

It seems that while I got the license itself (when I was 10 years old), it was never properly filled out:

The address has been redacted, but missing from the original is the signature of the Deputy Lizard Warden of the time, Al E. Oup. This could be a problem next time I’m in Utah!

Deputy Warden Oup (or Oop as it is more properly spelled) with one of his charges.

I had totally forgotten about this fun bit of tourist ephemera, which as it turns out, they still give out at Dinosaurland in Vernal, UT. In fact you can download a copy of the much fancier current Dinosaur Hunting Lic. from their website. Though I notice that the current Deputy Lizard Warden is now given as being “Al O’saurus” (obviously the Al E. Oup joke is for a past generation). But at least it comes pre-signed to spare future dinosaur hunters the legal difficulties that I am apparently going to have to endure.

Here’s a fun game kids, how many typographical and/or scientific errors can you find in the license?

An ex-pigeon

However it is not merely a pigeon that has shuffled off its mortal coil, tis a late pigeon that was once studied by Charles Darwin (Natural History Museum at Tring, Hertfordshire, England), making its image being shared here a matter of course. Photograph by Annie Leibovitz.

[Hat tip to Michael Barton at The Dispersal of Darwin.]

“Gill slits” by any other name…

Charles Darwin once said that he thought the evidence from the comparative anatomy of embryos was “by far the strongest single class of facts” in favor of common descent (Darwin, 1860) and while it has since been eclipsed by genetics, it remains one of most compelling subsets of evidence for evolution. And perhaps the single most striking detail in the comparative embryology of vertebrates, are the structures colloquially known as “gill slits”.  

Embryonic “gill slits” or “branchial clefts” (branchia is Greek for gill) or more properly pharyngeal clefts (grooves, folds, etc.) are part of what is called the “pharyngeal apparatus” found in front (ventral) and sides (lateral) of the head/neck region of all vertebrates in the “pharyngula stage” of development. In “fish”, and the larva of amphibians, these develop into respiratory organs used to extract oxygen from water while in amniotes (“reptiles”, birds and mammals) they are modified into other structures.

Before I go on, a brief digression about “fish”. Throughout this article I will often use “fish” in the generic sense; but it should be noted that the term as it is commonly used—to refer to any vertebrate that swims in the water, has fins and gills—is not a valid scientific classification. This is because the three main types of animals commonly called “fish” —the Chondrichthyes (sharks, rays, skates and chimaeras), the Actinopterygii (ray fined fish, which constitutes the majority of living fishes), and the Sarcopterygii (lobe fined fish, the group from which four legged land animals, i.e. tetrapods, evolved)—are not a monophyletic group. That is they are not very closely related to each other despite some of their outward similarities (like gills). For example the living Sarcopterygii, lung fish and coelacanths share a more recent common ancestor with us (and all tetrapods) than with the other “fishes”.

OK, so the “pharyngeal apparatus” consists of a series of paired pharyngeal arches and fissures which develop on the exterior with a corresponding set of pharyngeal pouches on the inside of the throat, separated from the external fissures by a thin membrane (more on the details in a moment). And in fact the possession of these structures at some point in development, along with a hollow dorsal nerve cord, a notochord and a post anal tail, are the defining characteristics of the phylum chordata to which we and all other vertebrates belong.

Copyright © 1999 McGraw-Hill Companies, Inc.

Please note that the above illustration is diagrammatic and not intended to be photographically accurate (I have to say that lest I be accused by creationists of conveying a fraud). Below are actual photographs of both a skate embryo and a human embryo for comparison. Also note: the gill structures in the embryos of Elasmobranch fishes—the subdivision of Chondrichthyes which contains sharks, rays and skates—are much less derived than in other “fishes” and therefore generally more similar to those of amniote embryos than the corresponding structures in the bony “fishes” (which are significantly modified).

(Gillis et al 2009, p.5721)

The first of the arches, the mandibular arch, forms the jaw in all jawed vertebrates (Gnathostomes). Most vertebrates develop a total of six arches but the full complement is usually only retained into adulthood by hexanchiform sharks. Hexanchiformes are very plesiomorphic which means that they are more like earlier types of sharks.  Some species of hexanchiformes even develop a seventh arch. Likewise the extant jaw-less vertebrate, the lamprey, also have seven gill openings.

Read on»