A patron hangout on Sunday

On Easter Sunday, at 3pm Central time, I’m inviting all my lovely supporters on Patreon to join me in a conversation on YouTube about whatever they want to talk about. I’ll come prepared with a few things I’d like to discuss, but if my guests want to go off in other directions, that’s going to be fine.

If there are any gaps in the conversation, I will be ready to talk about a few topics:

• I’m enthusastically getting ready to go spider hunting as the weather warms up. Last summer we explored a few narrow niches, this year I want to look more at spider diversity.

• I have tools and ways of exploring places for spiders, or other critters. We can talk about interesting environments here in Western Minnesota, or where others live.

• If you’re not into spiders, I’ll talk about my growing interest in photography, and show off a few of my favorite lenses. (Warning: amateur here.)

• There has been a curious shift in my thinking as I refocus my interests from lab-based developmental bio to field work on behavior & ecology & eco-devo. We can talk about philosophy of biology!

Also, most importantly, we can talk with those weirdos who support me, and they can share their interests and their expectations for the coming months. Probably not all are dreaming of arachnids.

If you’re a patron, and want to join in, you can find a zoom link on my Patreon page:

https://www.patreon.com/pzmyers

or on our Discord server:

https://discord.gg/gQhq4q

It’ll be fun! It’ll be a distraction from the fact it’s not quite warm enough to go out scouting for spiders.

Didier Raoult, pretentious git

The source of the claim that hydroxyquinone can treat the coronavirus, Didier Raoult, is a successful biomedical careerist in France, and a bit of a humbug. There are good reasons to be suspicious of the quality of his work.

Not surprisingly, Raoult’s rapid rise raised as many eyebrows as huzzahs. While his fans applaud the 3,000 scientific articles Raoult has co-signed, his critics argue that these staggering numbers do not add up. Do the math, they remark, and it turns out the Marseillais researcher publishes more papers in a month than most productive researchers publish in a career. Raoult’s method, according to one critic, is to task a young researcher at IHU with an experiment, then co-sign the piece before it is submitted to publication. “Raoult is thus able to reach this absolutely insane number of publications every year,” according to one anonymous source quoted by the site Mediapart. More disturbingly, the critic added, “it is simply impossible for Raoult to verify all of these papers.”

Yep. That’s the hallmark of a hack. But I want to focus on something in my bailiwick. He has written a book, Beyond Darwin, which is in French so I’m sorry (or perhaps relieved) to say I haven’t read, but I did read a translated interview with Raoult about it, via Google Translate (any infelicities in the translation should not be blamed on Raoult).

He belongs to a school of all-too-common evolutionary cranks who have a vague impression of what Charles Darwin said in the 19th century, know nothing at all about modern evolutionary biology, and imagine that the two are synonymous, so that they can deliver a double-whammy of ego gratification: evolutionary biologists are stupid, and he is brilliant, having discovered all the flaws in Darwinism all on his own.

For a long time, we thought that we were descended from a common ancestor: the Sapiens. In May 2010, a dramatic development: the results of an analysis of DNA taken from the bones of Neanderthals revealed that 1 to 4% of our genes come from Neanderthal. Whether we like it or not, we are related to this bastard, and not only to Sapiens “the intello”. The two met and mixed. The genealogical tree of the human species is anti-Darwinian because our ancestor is at the same time Sapiens, Neanderthal, a bacterium and a virus!

There are two gross errors in that accusation. The first is the idea that we think speciation has to be abrupt and instantaneous. Nope. No one argues that, so this is not a novel insight on his part. Speciation is often a mingling of braided streams that gradually separate, so the history of Homo neandertalensis and Homo sapiens is fairly typical of two closely related species. Calling that anti-Darwinian is kind of weird, because yeah, modern evolutionary biology is often non-Darwinian or even anti-Darwinian in the sense that we know a heck of a lot more about genes and genetics and the details of evolutionary history than Charles Darwin did. You don’t get a medal for bravery in defying 19th century beliefs in the 21st century, where undergraduate biology majors know things Darwin didn’t.

The second error is his over-emphasis on horizontal gene transfer. Of course some small amount of DNA from outside our direct lineage is occasionally inserted into our germ line via viral infection. Again, no one knowledgeable about evolution is going to be stunned by this revelation. The edifice of evolutionary theory is not perturbed in the slightest by the inclusion of yet another mechanism for mutation. What next? Gamma ray mutation means our genetic makeup has been modified by rays from outer space, therefore we’re all part alien? I probably shouldn’t give him ideas.

I occasionally run into cranks who insist there is no structure to our evolutionary history, that we’re all a melange of bits and pieces cobbled together into patchwork chimeras. Daoult isn’t the most extreme example of this nonsense, but he does have it bad.

The Darwinian tree does not exist. It is a fantasy. The idea of ​​a common core with divergent species like branches is nonsense. A tree of life, why not, but then planted upside down, roots in the air! If the species had definitively separated millions of years ago, there would in fact be no more living species on the planet. Each would have degenerated in its corner for not having been able to sufficiently renew its genetic heritage.

Except that we do have tools to measure the structure of a clade, and the evidence for it exists. I have no idea where this idea that we’d go extinct if we didn’t have other species to interbreed with comes from. I also don’t understand what “renew its genetic heritage” means.

In the Darwinian vision of evolution, everything was created once and for all, and if new species appear, it is only by gradual adaptation of existing species. In fact, nature does not just evolve, it continues to invent species.

This would be a surprising interpretation to the author of On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life. How does nature “invent species”, if not by branching cladogenesis? Do these newly invented species lack ancestors? Do they just spontaneously pop into existence without predecessors?

We discovered that a bacterium called Wolbachia had succeeded, by infecting a worm, in integrating 80% of its chromosome. She had, in fact, made a new species of worm! A brutal and massive evolution which has nothing to do with the slow and vertical evolution described by Darwin. If a woman carrying the herpes HV6 is pregnant, the virus having integrated into her chromosome, her son will have the virus in her genes. The boy’s grandfather will therefore be partly a virus!

This is not a particularly useful way of looking at our evolution. About 8% of our genome is made up of endogenous retroviral sequences, accumulated over many millions of years. These don’t significantly contribute to our physiology or morphology; they have accumulated precisely because they have so little impact on our overall biology that they escape natural selection for humans. So no, these things don’t fit any reasonable definition of “grandfather”.

He wouldn’t be an anti-Darwinian if he didn’t exercise a little hyperbole to show off his resentment of Darwin.

Darwinism ceased to be a scientific theory when Darwin was made a god. By introducing the concept of evolution after Lamarck, Darwin came to upset the frozen conception of creationists, who thought that the world had been stable since its creation. But, from then on, it became the object of a double myth. The myth of the diabolical for creationists, those who think that everything was created in a week, and the myth of scientists, who make “the origin of species” the new Gospel.

If you believe in the Judeo-Christian God, Darwin even makes it easier to understand him. With what we discover about biology, we come back rather to the gods of Antiquity. The men of Antiquity were perhaps animated by a just presentiment when, in mythological tales, they depicted hybrid beings, chimeras: Satyrs, Centaurs and Minotaur. Now imagine an evolutionary story written by a Buddhist scientist. It would be a question of cycle, even recycling, and mosaic beings, which we find in Nietzsche.

Hoo boy. There’s a common creationist trope, that Darwin is our god. It doesn’t work. We’re awfully critical of Darwin, and we rejoice when we discover new violations of his supposedly sacred dogma. Darwin is respected because of his careful, disciplined methodology and his appreciation of the evidence, and because he did have a brilliant insight that changed how scientists thought about history. It’s only kooks who simultaneously think Darwin is unjustly seated on a heavenly throne, and that they have had the grand, revolutionary insight that will allow them to displace him.

I won’t even get into his crap about old gods and chimeras, or his appallingly quaint rant about Apollonian and Dionysian dichotomies. Everything about this guy screams opportunistic kook with an exaggerated ego. At least it’s nice that he has found a friend in Donald Trump. They have much in common.


If you think I’m rude and dismissive, read this:

Now consider this. Raoult’s past papers show falsified data, which even resulted in his ban by ASM for one year, to which Raoult responded with threats of lawsuit. He is a patriarchal control freak and a misogynous bully who violently punishes all disagreement and uses threats against whistleblowers and victims to achieve compliance. He is pathologically resistant to criticism and believes to be infallible and omniscient: Raoult denied anthropogenic climate change in 2013 and before that, the microbiologist even denied evolution in his 2011 book “Beyond Darwin“. Raoult’s new study on chloroquine as the cure for COVID19 is obviously flawed, at best.

Should we really trust his claims and put our all lives in his hands?

Yet somehow he hangs onto his prestigious position with hundreds of underlings and publishes approximately a paper a day. This kind of abuse of the system ought to get him fired. It won’t.

Vertebrate paleontology just won’t be the same

Science has lost two great ones: Jenny Clack and Robert L. Carroll. Clack was an expert on the evolution of tetrapods, as was Carroll, who also studied reptile evolution. Normally, I’d be sitting my office right now and would be able to lift my eyes to my bookshelf and see Gaining Ground: The Origin and Evolution of Tetrapods and Patterns and Processes of Vertebrate Evolution, and re-reading them would be the best way to honor these influential scientists, but I’m stuck at home like many of us, so I’ll have to wait until I can fetch them.

I am impressed with their thorough analysis of butts & poop

I really thought it had to be a joke, a paper describing an automated method for analyzing various aspect of defecation. But it’s real, and published in Nature, no less. It’s well summarized in Vice, and Dr Jenny Morber put up a substantial Twitter thread about it. The level of detail and thought put into the paper on something I would rather not think about is amazing.

My one disappointment is that I failed at a prediction. When I first heard about it, I thought to myself that this has to be coming out of a German lab. But no! It’s from Stanford, the lead author has a Korean name, and the long list of authors looks like a genuinely international team. I guess the whole world can come together in their common interest in poop.

I resisted the temptation to include a figure from the paper, because they all make me slightly uncomfortable. Don’t worry, there are lots at the links I gave.

Spider search…accomplished!

I went all around my house, looking high and low for spiders. The good news is that my house is covered with spider food. Gnats, flies, skeeters, bugs of all sort clinging to the fences and walls and window screens. The predators can’t be far behind!

If I were a spider, I’d want to be here, pigging out on the deliciousness.

And the spiders are here! The first spiders I’ve seen outdoors this spring!

I found a half dozen Salticus scenicus scampering about, looking fit and healthy — maybe too healthy, because they were zooming around at high speed, making it difficult to take pictures of them. I took a few, anyway, and posted them on my Patreon page and Instagram.

The game is afoot! Spider season is upon us!

Can I quarantine myself in Queensland?

They’ve got spectacular spiders there. The Queensland Museum is closed to visitors now, but they’ve started this program called #couchcurators where the people make videos about what they’re doing. This one features Caitlin Henderson and her spider expertise.

I am so jealous. It’s not quite hammock weather here in Minnesota yet, but it is gradually warming up. We also have almost no spiders yet, except for the pholcid swarm that is scheming down in the basement. I am planning to do a spider walk around the house and yard today, though, not that I expect to find much, too cold. It’s even in my daily to-do list: “12:00 — search for spiders.”

By the way, that’s my new thing, getting up and making a list for the day. Everything has become so structureless that I’ve decided to create my own structure, so I get up in the morning and make a schedule for the day, and then I stick to it. Sadly, today my list is mostly repetitive.

1:00 grade
2:00 grade
3:00 grade
4:00 grade

You get the idea. There is a 5:00 student seminar to attend online, and mealtimes (I lay out the menus ahead of time and do not deviate — it’s all too easy to sit here eating all day long), and my 9:50 class, and most importantly, that noon hour dedicated to spiders.

Spirals. It’s always spirals.

Whoa. This is a siphonophore colony, 15 meters in diameter, just floating in the ocean with tentacles dangling down to catch prey.

I read the whole thread and didn’t see an answer to the question that immediately popped into my head. This is a colonial aggregate of multiple siphonophore bodies linked together into a long string, but it has an overall form of a spiral. How? Is there local signaling going on to regulate the distance between the strands so that it spontaneously forms that structure, or is it an accident of currents? I’m going to guess the former, which would be most interesting, because it implies the existence of factors that lead to large scale form and is therefore the kind of process that would lead to more elaborate patterns of development.

Also, it’s so planar. Is this something the animal regulates, or is it just layers in the ocean maintaining it?

Can haz spider time?

I’ve been doing class stuff all morning. I haven’t left the house in several day. I haven’t fed the spiders in five days. Am I permitted to go into the lab for an hour or so today? I promise to avoid touching anything, to wash my hands thoroughly, and feed the girls with lots of tasty flies. And I’ll buckle down to more grading as soon as I get back.

They miss me. Or at least they miss dinner.

Visit a museum!

That’s bad advice, since in my experience museums tend to be full of excited, eager disease-carriers — I mean, children — and a lot of museums are currently closing their doors and laying off staff. There are still museums with an online presence, though. Here’s a spider expert answering questions at the Burke Museum, and the Bell Museum has video tours of their exhibits. Tell your little disease-carriers kids to sit down and pretend they’re visiting a museum!

Hey, also, when this is all over, and when your finances have recovered…become a member of your nearest museum. They’re all hurting right now, too, and we should appreciate and support our local resources.

Rooting for Australian arthropods in amber

I think the title is a double entendre in Australian, but it’s not a language I am fluent in. Anyway, a paper in Nature describes an assortment of organisms found in amber from Australia and New Zealand, ranging in age from 230 million years to 40 million years. It’s lovely stuff.

Significant bioinclusions of plants and animals in Southern Gondwana late middle Eocene amber of Anglesea, Victoria. (A to B) Liverworts of the genus Radula (Marchantiophyta: Radulaceae). (C) Two stems with perfectly preserved phyllids or leaf-like structures of mosses of the genus Racopilum (Bryophyta: Racopilaceae). (D) Juvenile individuals of spiders. (E to F) Springtail of the living genus Coecobrya (Entomobryomorpha: Entomobryidae) in two views. (G) A Symphypleona springtail. (H) Light photograph of large piece of yellow amber with two dipterans, Dolichopodidae at left and Ceratopogonidae at right, and at top of image a mite of the living genus Leptus (Arachnida: Acari: Trombidiformes: Erythraeidae). (I) Dipterans of the family Dolichopodidae (long-legged flies) in copula. (J) Worker ant of the living genus Monomorium or a “Monomorium-like” lineage (Hymenoptera: Formicoidea: Formicidae).

I don’t know about you, but I was most interested in D, the two juvenile spiders.

Wait, I do know about you — you’re most interested in I, the two flies caught in the act. So here’s a closeup.

Count yourself lucky. Now if you want to take a pornographic selfie, you just whip out your phone, capture the moment, and go on with your life. Forty million years ago, you had to say “Freeze! Look sexy!” and wait for a drop of sap to ooze over you, and then you had to hold the pose for tens of millions of years.