Mendacious creationists won’t fess up

First some context. Back in 2012 I wrote an article on yet another benighted creationist attack on 19th century zoologist Ernst Haeckel, written by The Institute for Creation Research’s (hereafter ICR) Dr. Brian Thomas, (Thomas 2012) implying that Haeckel—and some comparative embryology plates from the 3rd edition of his book The Evolution of Man (1874)—are responsible for the idea that the embryos of tetrapods (terrestrial vertebrates) at one point in their development posses structures often commonly referred to as “gill slits”, more properly pharyngeal clefts and pouches.

This is of course utter nonsense, as I have written on this extensively in other posts (see related links below); however embryological pharyngeal structures are not the real point here. Rather it is a quote, or I should say misquote, cited by Thomas, from a textbook, Biology (2007), authored by Sylvia Mader and a “correction” ICR has made in an editor’s note since added to his article.

In his article Thomas uses the “quote” in question—and Mader’s use of comparative embryo illustrations based, at least in part, on Haeckel’s—to imply that Mader is A) unjustifiably interpreting embryological evidence as being supportive of evolutionary theory, and B) That she isn’t up to date on the true state of comparative vertebrate embryology and Haeckel’s “discredited” illustrations.

First Thomas’s mangled quote of Mader:

Thomas: Mader wrote:

At some time during development all vertebrates have a postanal tail [spinal cord-like scaffold] and exhibit paired pharyngeal pouches… In humans, the first pair of pouches becomes the tonsils, while the third and fourth pairs become the thymus and parathyroid glands. Why should terrestrial vertebrates develop and then modify such structures like pharyngeal pouches that have lost their original function? The most likely explanation is that fishes are ancestral to other vertebrate groups.3

But how does Mader know that the pouches “lost original function?” She doesn’t—she makes the statement on the basis of evolutionary belief, not on scientific observation. She even lists the pouches’ critical functions for human development. Since the pouches are tissues organized into folds and have known functions, then there is no scientific reason to even suspect that they reflect any evolutionary past.3

Now Mader’s quote with some context and significant parts mysteriously missing or altered from Thomas’s version (the parts of significance missing/altered in Thomas’ version in boldface):

The homology shared by vertebrates extends to their embryological development (Fig. 17.16). At some time during development, all vertebrates have a postanal tail and exhibit paired pharyngeal pouches. In fishes and amphibian larvae, these pouches develop into functioning gills. In humans, the first pair of pouches becomes the cavity of the middle ear and the auditory tube. The second pair becomes the tonsils, while the third and fourth pairs become the thymus and parathy­roid glands. Why should terrestrial vertebrates develop and then modify structures like pharyngeal pouches that have lost their original function? The most likely explanation is that fishes are ancestral to other vertebrate groups. (Mader 2007, p. 296)

As I noted in my previous post on Thomas’s article, he replaces Mader’s reference to the fact that the pharyngeal apparatus of vertebrate embryos develop into functioning gills in not only fish but also the larva of amphibians as well, with three little dots (beware creationists bearing ellipses…!). I think it is fair to speculate that Thomas does this due to the fact that these functioning gills in amphibians inconveniently bridges a gap between gilled fish and fully terrestrial, air breathing, vertebrates; something he would rather not have his readers contemplate.

This omission, as we will see, is not mentioned in the more recently added editor’s note.

In the second boldfaced part of the correct Mader quote we see that Thomas somehow altered the quote to make Mader wrongly say that the first pair of pharyngeal pouches are modified during development to become tonsils, rather than the middle ear and auditory tube (eustachian tube). On the other hand it is in fact the second pharyngeal pouches that gets modified into the tonsils.

All this has been merely the backdrop for the quote from Mader’s Biology (2007), Thomas’s mangling of said quote and ICR’s “correction” of Thomas’s mangle. Somehow in the intervening year since I pointed out the problems with Thomas quote or Mader—and I don’t know if it was my pointing it out that caused it—an editor of the ICR’s website became aware of Dr. Thomas’s little oopsie on which pharyngeal pouch becomes what, and decided to add a face saving note correcting the error, however the devil is in the details of this “correction”:

Editor’s note: Updated embryology specifies that the first pair of embryo pouches develops into the middle ear, not the tonsils as the above Mader quote states. “The first pair of pharyngeal pouches become the auditory cavities of the middle ear and the associated eustachian tubes. The second pair of pouches gives rise to the walls of the tonsils.” (Gilbert, S. 2014. Developmental Biology, 10th ed. Sunderland, MA: Sinauer Associates, Inc., 478.)5

Here we learn that “Updated embryology” has created a need to correct misinformation stated in the “Mader quote” on the developmental destiny of the first pharyngeal pouches. That would be the quote where Mader provided accurate information in her textbook which was then mangled by Thomas while conveying it to his audience.

It’s not Thomas’s fault you see, it is because Mader needed to be “updated”.

How contemptible do you have to be to first butcher a quote from a scholar and then when your malfeasance is pointed out to imply that it is the scholar’s information that is at issue rather than your honesty and/or competency?

Update: Having gone back and looked at Thomas’s article I realized that despite the editor’s note correcting the misinformation about the first pharyngeal pouch (arch?), the misquote of Mader has not been corrected. This leads me to speculate that they (whomever at ICR added the note) haven’t actually figured out that Thomas screwed up the quote.

Top notch stuff.

Related Links

Creationist foists “fraudulent” embryo picture on his readers” (2012) by Troy Britain

Gill slits” by any other name…” (2012) by Troy Britain

Responding to a comment on my article: “Gill slits” by any other name…” (2016) by Troy Britain

Haeckel’s ABC of evolution and development” (2002) by Michael Richardson & Gerhard Keuck

Ernst haeckel’s ontogenetic recapitulation: irritation and incentive from 1866 to our time” (2002) by Klaus Sander

Pictures of Evolution and Charges of Fraud Ernst Haeckel’s Embryological Illustrations” (2006) by Nick Hopwood

Accuracy in embryo illustrations” (2008) by the National Center for Science Education

Haeckel’s embryos: fraud not proven” (2009) by Robert J. Richards

References

Haeckel, Ernst (1874) The Evolution of Man

Mader, Sylvia S. (2007) Biology (9th ed.), McGraw-Hill

Thomas, Brian (2012) Do People Have ‘Gill Slits’ in the Womb?, ICR website accessed on 3-17-2024

Answers in Genesis apparently didn’t like MY answers

So I’ve been blocked by the Answers in Genesis Facebook page. They’ve deleted my comments and those of the people who had responded to my comments (their fans), without warning or explanation. Not that I don’t know why they did it; censorship is the go-to tool of those who don’t have an argument, so they use what power they have to try and make the inconvenient questions—or answers—go away.

In this case they had posted a link to an article on their website with the tagline:

Atheists believe that religion should be kept out of public places. But what if atheistic humanism is a religion, too?

Now I generally don’t get involved in theist vs. atheist debates online and I had no intent in doing so in my response to this tagline. All I did was state that I thought most atheists did not believe “that religion should be kept out of public places”, just out of governmental institutions like public schools and courtrooms etc. 

There was a little back and forth with some of the faithful, however I participated in no name calling or insult slinging. My harshest comment was probably when I suggested—after essentially being told that if I didn’t like their interpretation of church/state separation that I should move to a communist country, which is funny given that I am an anticommunist—that if they didn’t like living in a pluralistic liberal (small L) constitutional democratic republic where the rights of everyone were protected, they were free to leave.

There was that and I believe I referred to one of my interlocutors caricature of evolution as “ludicrous” or something similar. That was about it, that is all it took for the ban hammer to come down.

Pathetic really.

Ah well another feather in the cap to go along with my banning from the Institute for Creation Research’s Facebook page.   

 

Noah’s Ark Sighted!

Noah's Ark Sighted

Finally, hard evidence of the Genesis Flood story!

So I was on a panel discussion about micro vs. macroevolution…

Several weeks back I get an email from Phil Calderone, a member of one of the local atheist/agnostic/freethought groups (I.E.A.A.), asking if I would like to act as a fill in on a (then) upcoming “believers vs. non-believers” panel discussion on the subject of micro vs. macroevolution. Apparently, one of the persons originally invited was not going to be able to participate and he needed a fill in and was pointed towards me by Dr. Brad Hughes, who many years ago I had helped (along with others) prepare for a debate with “Dr.” Kent Hovind.

After some trepidation—due to having never done any public speaking before—I agreed to participate as long as it was understood that I was unlettered and neither a paleontologist or biologist but rather a mere amateur naturalist who has had a bit of experience in the creation/evolution debate. 

The format of the discussion was meant to be a relatively informal back and forth between four people with two on each side. One the “believers” side there was a gentleman named Kelly Clemensen, of something called the Areopagus Project, and Dr. Paul Giem of Loma Linda University (see also Giem’s web page here). On the non-believers side was myself and Phil Calderone who was to moderate but had to fill in the second non-believers chair for another person who couldn’t make it.

I will not go into any more description of the event as it was recorded on video and you can watch the proceedings for yourself below. However, truth and honesty before all I will be addressing at least two places where I know I screwed up in the discussion below the video.

Please feel free to point out any other mistakes I made, or address the many points made by the creationists that went unaddressed by either Phil or me during the discussion. I know there are whole bunches of things that our opponents said that was missed or deserved more in depth dissection.

Now that you have, hopefully, watched the video there are two places that I realized I messed up pretty much right after the debate. One was minor memory failure, misattribution about punctuated equilibrium. The other was a more significant—at least in my opinion—point were I brought up a group of fossil organisms that was really something of a red-herring—though I committed the fallacy out of partial ignorance—and should have known better from other statements I myself had made at other points in the same discussion!

Read on»

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

ICR blocked me on Facebook

boy-that-escalated-quickly

So, the Institute for Creation Research put up a link on their Facebook page to one of their latest Acts & Facts articles on the whole Ernst Haeckel/vertebrate embryos thing and since the sort of stuff creationists write about this subject is a pet peeve of mine (as readers of this blog will no doubt have gathered) I decided to post a quick comment on the following quote from the article:

Guliuzza: Shouldn’t students be skeptical when they’re told that evolutionists can simply look at folds in embryos and see gill slits? The truth is that these are only folds of tissue in the pharynx region of vertebrates during the pharyngula stage of development. For mammals, birds, and reptiles, they never develop into a structure that is in any way like fish gills.

I wrote that this statement was not true as would be known to anyone who had cracked an embryology textbook and asked if Dr. Guliuzza (the author of the article) was therefore incompetent in this area or if he was being deliberately misleading. Further I provided a link to my blog post on the subject of “gill slits” so that anyone interested could look at the evidence for themselves.

I also corrected one of their other commenters on what Thomas Huxley and Charles Lyell’s professions and religious perspectives were. I also noted to the commenter that all science, not just evolutionary biology, leaves God and other supernatural agents out of its explanations.

I used no harsh language, I did not call anyone any names and I engaged in no mockery (unless you count my pointed question about Guliuzza competency/honesty) and yet the end result was that my link and all my comments have been deleted and I am apparently now blocked from commenting on ICR’s FB page.

I’ll leave the reader to decide what this says about ICR and the robustness of their scholarship.

1dq363

Jack Chick is dead…

image_1477796812_44571917I can’t believe I hadn’t heard about this already but apparently the infamous Jack Chick, author of those vile little sooo bad they’re almost good cartoon religious tacts that you would sometimes find stucked under a windshield wiper on your car, or laying in a parking lot after someone pulled it out from under their windshield wiper and threw it on the ground… Yeah those, died last Sunday (10-23-2016) at the age of 92.

There were so many “great” tracts, like Dark Dungeons that attacked the game Dungeons and Dragons and in which Chick claimed that D&D could lead you to practicing actual, for reals, black magic.

0046_05

But of course for me the pièce de résistance was his antievolution tract, Big Daddy, wherein we read the story of an intrepid young creationist student who schools his teacher on how foolish and wrong evolution is, concluding with the teacher leaving head hung low in disgrace. Hilarious!prof-quits

Ah well, bye Jack, Big Daddy will always hold a special place in my… in my… ah, well, bye Jack and my condolences to his loved ones.

Creationism Nit: Archaeoraptor?

So the other day I found myself near one of the local Bible book stores and since I had the time wandered in to see what creationist fare they might have in their apologetics section. As it turned out not a lot, however in the homeschooling section they did have this little tome titled, Exploring the world of biology: From mushrooms to complex life forms (2009) by a John Hudson Tiner and published by Master Books (which as far as I know is still a subsidiary of the Institute for Creation Research):

the-world-of-biology-tiner

I am not sure why Mr. Tiner—who is apparently a math teacher—chose to start with mushrooms in his “exploration” but even leaving out simpler organisms makes his exploration a tall order when he only has 160 pages to work with.

Regardless, I am not here to critique the entire book, or even the section from which I have drawn my nit (I couldn’t do so in good faith anyway, as I only flipped through the book and took a couple quick photos). I am only here for the nit, nit, nit!

And the nit is this from page 133:

archaeoraptorHere we have a black and white photo of a fossil which is labeled Archaeoraptor liaoningensis.

Huh, yeah, it is just that the problem is the picture is not of that notorious fraudulent fossil. See for yourself; compare the picture above with following picture of the actual “Archaeoraptor”:

Source is the Fossil Wiki page

You don’t have to have a degree in comparative anatomy to tell these two specimens apart.

What Tines has done is publish what is clearly a cropped photograph of the Berlin specimen of Archaeopteryx siemensii perhaps the single more famous and recognizable fossil in the worldand mistakenly labeled it as Archaeoraptor.

Archaeopteryx siemensii

The Berlin specimen of Archaeopteryx siemensii

So, yeah, “oops!” Mr. Tines may want to familiarize himself with Archaeopteryx before he opines on the state of the fossil evidence for the evolution of birds from other dinosaurs (let alone starts writing books that might fall into the hands of impressionable children). 

For more info on the Archaeoraptor story see:

Archaeoraptor Fossil Trail” By Lewis M. Simons from the October 2000, National Geographic magazine

Responding to a comment on my article: “Gill slits” by any other name…

I have decided to move this up from the comments section (cuz why not?) of my article “Gill slits by any other name…

Andy: Hi Troy, I read your post, and it is very well argued.

Thanks. [He said knowing that a “but” was coming.]

Andy: At the moment, I am a biology student at a local university, and one of my personal headaches is the promotion of either creation-ism or evolution-ism. To be honest with you and with all due respect, I really don’t care for either explanation.

Andy, with all due respect, you should know that for someone like me who has been in the “trenches” debating people pushing pseudoscience for years, the fact that you would refer to evolutionary theory as “evolutionism” is a large red flag that would strongly lead me to suspect that your understanding of evolutionary theory and science itself is likely wanting.

Unfortunately, your next sentence does little to disabuse me of my suspicion. Creationism is set of theological beliefs regarding a creation story written down in the 6th or 5th century B.C.E., accepted on faith and in the face of contravening facts by a tiny minority of people with any scientific background. Its mechanisms (God did it) are untestable and to the extent that it makes claims testable against the empirical world it has been falsified a thousand times over.

On the other hand evolutionary theory is a scientific explanation for a vast number of facts that is testable against further observations of the empirical world and used by the vast majority of the relevant scientific community as a guide to further research…whether you “care” for it or not.

That you would casually place them on the same level is yet another huge red flag.

Andy: As a student, the only thing that I am concerned about is true scientific facts that have been tested at a laboratory to the molecular level.

We are only three sentences in and we have three red flags. In my experience people who use terms such as “true scientific facts” (as opposed to what, “false scientific facts”?) tend to not to be particularly familiar with either the facts or what counts as scientific.

However, that is a nit compared to the philosophical problems with your above statement. Why on Earth would you limit yourself to what is testable in a laboratory at a molecular level? Better yet, why should anyone else take your narrow limits as to what to be concerned with seriously? Using your bizarre limitations, we would be throwing out vast swaths of empirical data, and not just in biology.

Molecules are great but they are not a perfect path to knowledge nor are they the only path.

Furthermore, the point of science is not simply collecting random facts, rather it is about explaining the facts that we observe [insert Darwin quote about collecting pebbles here]. In this case, we have detailed anatomical, physiological and genetic similarities between the pharyngeal structures of terrestrial vertebrate (hereafter “amniotes“) embryos and non-amniote vertebrates (amphibians and “fish”), set against a particular paleontological backdrop that needs a coherent explanation.

You do not like creationism, great. That should be a given and I am with you. However if you do not like evolutionary theory, then what is your better explanation for the gill-like appearance of the pharyngeal structures of amniote embryos (and everything else evolution explains)?

You cannot just sit back and say, “I don’t buy any of it” and expect to be taken seriously, especially in face of the apparent success of evolutionary theory.

Andy: My teacher presented this same example about the gill slits during a microbial genetics lecture.

I am not sure how the “gill slits” of vertebrate embryos are relevant to the genetics of microbes but OK…

AndyI was just exhausted of listening, so, I raised my hand and said that the information was outdated and more up-to-date data has been collected explaining that they are no longer gill slits, and they are pharyngeal pouches.

Huh, did you read my article to which you are supposedly responding? You are literally arguing semantics here. Regardless of what we call these structures in the embryos of amniotes, they exist, they resemble—in detail—the developing gills of non-terrestrial vertebrates, and we want to understand why this would be so.

AndyHe asked what was my source, and my reply was, with all due respect, professor, but your source is 150 years old and newer information was out that did not concentrate on a belief based teaching. He stopped and said he will do some more research and get back to us. He continued with the lecture as it was intended.

I am sorry but “your source is 150 years old”, even if true, is not an argument; old ≠ incorrect. FA = -FB (for every action there is an equal and opposite reaction) gets robotic probes to Mars despite the fact that Newton came up with the formula over three hundred years ago.

Furthermore, what is this “belief based teaching” to which you refer? Once again, if you read my article you would know that referring to these structures as “gill-slits” is not dependant on a belief in either creation or evolution as is evidenced by the fact that pre-Darwin creationists called them this.

Oh, and what is your source Andy?

AndyI agree; they look like gills until you dissect it, and then they look like pouches. I know in biology we name a lot of things base on morphological characteristics, and that is a great easy way to remember things.

No, no, no, again did you even read my article? Here, look at this diagram again:

Source bionalogy.com, with modifications.

Source bionalogy.com, with modifications.

There are clefts (or grooves) on the outside of the pharynx (red arrows) with corresponding pouches on the inside (blue arrows). These clefts and pouches are each separated by membranes that, in mammals, normally remain unperforated with the first (tympanic) membrane forming the so-called eardrum. Some of the post tympanic membranes do normally perforate and then reclose in some birds and reptiles embryos. They also temporarily perforate in the gill-bearing larvae of some amphibians and, of course, in fish they stay perforated and become gills.

Since I know some people are queasy about diagrams here are a few photographs of coronal sections done on various mammal embryos. First, an electron microscope picture of what I think is a stage 13 human embryo (Etchevers, 2008)(blue arrow points to the pharyngeal pouch and red to the corresponding cleft).

(Etchevers, 2008)

For comparison, here are some stained sections from a mouse (left, Zhang et al. 2005) and a pig (right, Shone & Graham 2014) at a similar point of development; once again blue arrows for pouches and red for clefts. Also, note in these photos that the aortic arches—the blood vessels—are visible within the pharyngeal arches (green arrows).

(Left, Zhang et al. 2005 – right, Shone & Graham 2014)

These are not just “pouches”! There are arteries (the blood vessels shown above), muscles, nerves and cartilaginous structures found on either side of the cleft/pouch pairs in the embryonic gills of “fish” and the corresponding pharyngeal arches of amniote embryos.

How do you get from this to, “they look like gills until you dissect it, and then they look like pouches” without ignoring all of these observable facts? These things exist and you need to explain them Andy.

AndyThe only thing that really gets to me is that either creationist or evolutionist keeps trying to push the subject in school.

The reason a competent science teacher (i.e. one who teaches evolutionary theory) would bring them up is because they are structures that have interested biologists since they were first discovered and whose existence is elegantly explained by descent from a common ancestor (evolution).

AndyHonestly, I paid for one of my books close to $300. I feel that my book should be filled with up-to-date information that has been tested, and that is going to help me in the future and not filled with propaganda of any kind.

The pharyngeal structures of amniote embryos are not propaganda. They exist and are observable by anyone with eyes to see. For example, please note that the photographs of the pharyngeal sections of mouse and pig embryos I reproduced above were both taken from papers published within the twenty-first century. Any modern textbook on vertebrate developmental biology is likely to have similar photos or diagrams of these structures.

AndyI guess it is easier to print the old stuff than to update the books to what they are intended to do, and that is to provide useful information that can help us treat diseases and give our patients a fighting chance.

Sorry Andy regardless of whether it comes from an older source or a current one, pharyngeal clefts, or “gill slits” exist in amniote embryos whether or not you want to accept the facts or the current best explanation for them, so please spare us the overwrought “won’t someone think of the ill people?!” shtick.

AndyTo this day, I haven’t seen a mermaid or an angel either in nature or in a lab, so, I will have to dismiss both claims as pending research and proper laboratory testing.

53435573

Yeah so at this point, I am starting to have doubts that you are for real Andy and not just a troll looking for attention. What the hell does a mermaid have to do with anything Andy? Please tell me you are not seriously suggesting that evolutionary theory somehow supports the existence of mermaids [Hint: the exact opposite is the case]. Because if you think it does, you may want to rethink your career path—perhaps something in the arts?

AndyPlease don’t take this the wrong way. I am a paying student who is discordant with the never-ending stories.

As I said, after the mermaid comment I am no longer sure how to take you Andy. Perhaps your response or lack thereof will clarify that question.

Regardless I want to thank you Andy. Formulating my response to you has made me consider adding a few things to my “gill-slit” article that I think could use some expansion or clarification. So anyway, Poe, troll or sincere, something positive has come from your comment, thanks.

References

Etchevers, Heather (2008) Development of the branchial arches (slide presentation downloaded on 10-29-16)

Shone, Victoria & Graham, Anthony (2014) Endodermal/ectodermal interfaces during pharyngeal segmentation in vertebrates, Journal of Anatomy, 225(5):479-91

Zhang, Zhen et al. (2005) Tbx1 expression in pharyngeal epithelia is necessary for pharyngeal arch artery development, Development, 132:5307-5315

Playing Chess with Pigeons on Facebook

pigeonchess_sm

While I have had a link to my personal Facebook page in the sidebar for some time, I don’t know if I have ever mentioned here that Playing Chess with Pigeons has its own Facebook page… Well, now I have.

I generally post cartoons and news stories directly related to CvE as well as links to science news stories that I think are interesting and/or obliquely related to the CvE debate.

Anyway, have a look, like, subscribe, share…