The idea is so outlandish, but so significant, that it puts her right up there as one of the greats of biology.
We owe a huge debt to Margulis, but it’s not only for this that we owe her. Margulis has described neo-Darwinism as; "a minor twentieth century religious sect within the sprawling religious persuasion of Anglo-Saxon Biology" and believes that her opponents "wallow in their zoological, capitalistic, competitive, cost-benefit interpretation of Darwin—having mistaken him.”
Isn’t this great!? I know you want more; “… Neo-Darwinism, which insists on (the slow accrual of mutations), is a complete funk" (Science, Apr. 19, 1991 pp. 378-381 ).
Whew! What did all this mean?
Here’s my take on it.
Her reference to “Anglo-Saxon” biology as a religion is actually misplaced. I believe the problem she refers to should be labeled “Anglo-Norman ideology” because it was only after the Norman invasion of England that the peculiarly British cultural oddity we now know as individualism, emerged as a significant social force. The concept was eventually given written form and “philosophical” credibility by Thomas Hobbes and John Locke, after which it never looked back.
So powerful was its grip on the imagination of a sector of the British intelligentsia that Darwin’s most prominent supporter, Thomas Huxley, was unable to accept Darwin’s clearly unambiguous description of social instincts as superior to individual instincts, and more significant than individual instincts as a factor in evolution. Huxley salved his conscience by mentioning the importance of sociality in a mere footnote to his essay Evolution and Ethics (1894), a concealment that must rank as one of the more notable abandonments of ethics in the history of science. But Huxley’s role in advancing the ideology went further than this.
Concealment of the significance of sociality in evolution went hand in hand with the promotion of ruthless competition. And it was this perception of evolution and natural selection, the image of “nature red in tooth and claw” that was seized with glee by apologists for capitalism who were, at that time, struggling with an outraged public reaction to the inhuman conditions under which the working class, including very young children, were expected to labour.
Huxley and others gave them the justification they craved. Individualism, competition, and struggle it was alleged, is the way of the world, the natural order just as God had created it, now backed up by the findings of science. The political alliance between capitalism and established religion continues to this day, and it was that perverted, anti-social version of Darwinism that was utilized by this political alliance, and which also continues today in its modern form of neo-Darwinism.
So successful has the project been that it’s taken on a life of its own to such an extent that its most prominent modern advocate Richard Dawkins, who apparently has no sympathy for the political machinations of individualism, (and certainly none for established religion) felt constrained to take its non-scientific basis to its logical conclusion, gene selection, this being individualism reduced to its most fundamental level. In the process he has completely lost sight of the logic of evolution to finally arrive at a definition of evolution in which he mistakes an evolutionary outcome, gene survival, for its cause.
But is neo-Darwinism “complete funk”? Margulis believes that variation by mutation is far from being the main driver of evolutionary change. She believes that by focusing on animal behaviour, (hence her reference to “zoological wallowing”), biologists have lost sight of the fact that most evolutionary change has taken place at the level of micro-organisms, and that animal behaviour is such a late-comer to the evolutionary story that it’s of little importance in considerations of evolution as a whole. She has a point.
But does she have a counter-theory? Indeed she does.
Margulis argues that her great discovery, the symbiotic entry of colonies of bacteria into prokaryotic cells to produce the eukaryotic cells of which modern organisms are comprised, has been the principal driver of change. There’s no arguing against its significance. Without that occurrence evolution would have stalled at the level of micro-organisms. It was the eukaryotic cell that allowed for diversity, increased fitness, complexity and development.
So why do we owe Lynn Margulis?
Lysenkoism can be defined as science being pushed up blind alleys in the service of ideology. When the most prominent advocate of neo-Darwinism can proudly proclaim to the world the absurdity that “Evolution is the external and visible manifestation of the differential survival of alternative replicators” then what we are observing is our very own Western variant of Lysenkoism, for this is certainly science in the service of ideology, and it has certainly pushed biology up a blind alley. We owe a debt to Lynn Margulis for having the courage to take a stand against orthodoxy and dogma.
Still not convinced? You still think that neo-Darwinism has not gone completely off the rails? Consider the following.
In the endnotes to Ch 6 of The Selfish Gene (2006) Richard Dawkins ridiculed Marshall Sahlins for his argument against kin altruism that concluded with the following remark; “I shall not even comment on the even greater problem of how animals are supposed to figure out how r = 1/8” (“r” being the co-efficient of relationship between animals used in the so-called Hamilton’s Rule so beloved by selfish gene theorists.) Dawkins responded by citing several examples of mathematical outcomes in nature that cannot be the result of calculation, the spiral design on snail shells being one example.
A fair enough point we might say. But it begs the question as to why Sahlins assumed that such calculations are involved in kin altruism. The answer to that can be found in the same chapter endnotes. Once again I must quote this or you just won’t believe me. Dawkins highlighted a line from his first edition that contained an error. It read; “We simply expect that second cousins should tend to receive 1/16 as much altruism as offspring or siblings.”
Well well, I hear you say, what a clanger, thank goodness he’s going to change that! Don’t jump to conclusions, it gets worse, not better. He explained why that sentence should be changed: “As S. Altmann has pointed out this is obviously wrong. It is wrong for a reason that has nothing to do with the point I was trying to argue at the time. If an altruistic animal has a cake to give to relative , (what?!) there is no reason at all for it to give every relative a slice, the size of the slices being determined by the closeness of relatedness….if there is a close relative in the vicinity there is no reason to give a distant relative any cake at all….the whole cake should be given to the closest relative available. What of course I meant to say was ‘We simply expect that second cousins should be 1/16 as likely to receive altruism as offspring or siblings’, and this is what now stands.”
Can you believe this? What we have here is Altmann and Dawkins arguing over angels dancing on the head of a pin. Because this is irrelevant nonsense that has no connection to reality. Animals, including humans, do not act this way. Dawkins has had thirty years to ponder this error, and this is the best he could come up with? This is biology that’s away with the fairies.
But let’s assume for a moment that the argument is valid. (I know that’s difficult but bear with me.) If Dawkins does not expect that animals make these calculations, as he stated in his rebuttal of Sahlins, we can only conclude that he implies a genetic influence, as in snail shell design. His argument must be that this is a consistent, gene-driven behaviour, because he says we expect it. But remember that this is the same Richard Dawkins who in The Extended Phenotype mounted a passionate and lengthy defence against the accusation that he is indeed an advocate for genetic determinism. This leaves him with nowhere to go. His inability to think logically has him painted into a corner.
But contradictory positions have never fazed Dawkins, and it’s interesting to follow his argument further. He continued by employing a flawed analogy, smoke and mirrors in other words, to support his position that this alleged behaviour, “proportional altruism” we might call it, is indeed genetically determined and is no different to the design of a tree which conforms to a mathematical basis, buttress roots being the example given. (Proportional altruism is a far better term than kin altruism as it reminds the reader of the delusionary nature of the discussion.) Buttress roots was an unfortunate choice for Dawkins, as the mathematical influence on buttress roots is possibly far less than he expects. It could well be that as many trees grow without the buttress feature, or in a lesser form, as grow with it, and that we see only the survivors. The shape of the survivors is as much a product of natural selection as it is of genetics, the mathematical basis being an outcome, a mere measurement, not a cause.
We should not be surprised that Dawkins made this mistake, as it flows from his inability to distinguish between causes and outcomes in evolution generally.
But as he continued the argument, Dawkins realised that there is really no connection between organism design and the behaviour of other organisms, so he employed yet another flawed analogy in an attempt to link proportional altruism to another behaviour. He alleged that the actions required to catch a ball for example, are a behaviour governed by math that is not calculated by the catcher.
The flaw here is that catching a ball is not an unconscious or automatic response as with proportional altruism. It is a learned behaviour. Furthermore, the catcher has a choice. She can choose to not catch the ball, unlike proportional altruism whereby the behaviour must be consistent or the concept is meaningless.
Because Dawkins could not provide examples of mathematically determined behaviour and consequently had to clumsily manufacture them, Sahlins was correct to question the legitimacy of the alleged mathematical basis of kin selection and kin altruism.
And it was this question of altruism that provided the biggest challenge to neo-Darwinism as many of its proponents descended into the mire of selfish gene theory. Altruism had to be explained away, and it was explained away by claiming that altruism is derived from fictional mathematical descriptions of non-existent behaviours. That’s about as pathetic as it can get in science.
Neo-Darwinism has been defined as the synthesis of Mendelian genetics and Darwinian natural selection, but it has always struggled with the tension between the stability at the heart of genetics and the variation (instability) at the heart of natural selection. That tension needs to be addressed, but will not be resolved by indulging the mathematical fantasies of armchair biologists.
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Good article, Steve. I think the concept of altruism and kin selection is largely misunderstood and misleading. If we exclude humans for the moment, most animals are confined geographically (since they must move about only by their own locomotion), it stands to reason that for any animal population there will be a large number of "kin" present. In my view, this simply causes the behavior of the iterated Prisoner's Dilemma in game theory, where the likelihood of encountering someone with whom you will have future contact increases, so it tends to promote cooperation (i.e. Game theory - 'Tit for Tat").
I think the point about "kin" is incidental and not primary. The second problem is with the definition of altruism which seems to range from sharing to self-sacrifice. It would seem that we first need to establish the prevalence of such actions and determine what benefits, if any, are obtained. Obviously if there is a benefit, then we already know why it's a behavior that could have been selected for. However, we also need to determine whether such behavior (like self-sacrifice) is abnormal or not. Once again, if these are simply "fringe" behaviors, then there's no further need for trying to establish a global principle.
With human beings, we are entering into a different realm because most behaviors are focussed on preservation of the group (i.e. society) and not the individual. In addition, we are subject to our beliefs and ideologies to further influence our choices, so any action that might be deemed altruistic needs to factor in how it functions within the larger group dynamic. If we take something like an ant colony, it would be wrong to argue that the behavior of the "soldiers" is altruistic, since they are part of a larger "organism" whose job it is is to defend it. That would be like arguing that white blood cells behave altruistically when fighting infections.
Proportional altruism is simply contrived, because it seems obvious that the farther removed from a "kin" relationship one is, the greater the likelihood that future encounters would be more limited, so the game theory explanation works just fine here. Since it is clear that animals are capable of recognizing and forming "relationships", I would suggest that this is not substantially different than the same criteria we, as humans, apply when determining who is a stranger and who is not. There may not necessarily be any kinship involved, beyond the fact that we "know" each other.
There's a lot here to take on board.
It has always been my - somewhat cynical - opinion that the division of any cake in the 'natural order' of things is such that by some miracle the person wielding the knife always gets the biggest slice.
it was only after the Norman invasion of England that the peculiarly
British cultural oddity we now know as individualism, emerged as a
significant social force.
I don't see 'individualsim' as being British at all. Look at how many people have been flogged, imprisoned or murdered for daring to criticise the 'status quo'. Was Socrates a conformist?
Although the individualistic and non-conformist thinkers Laozi and Zhuangzi, later known as "Daoists," were never officially accepted by the Confucian mainstream, they played crucial roles as outsiders in shaping Chinese art and culture as well as philosophy.
Dr. Paul Kjellberg - Asian Philosophy: Early Chinese Philosophy.
Neo-Darwinism has been defined as the synthesis of Mendelian genetics
and Darwinian natural selection, but it has always struggled with the
tension between the stability at the heart of genetics and the
variation (instability) at the heart of natural selection. That tension
needs to be addressed, but will not be resolved by indulging the
mathematical fantasies of armchair biologists.
Oscillation is one form of stability - alternation of generations, for example. By the way, that was once the name of an entirely different theory which purported to explain how a brown-eyed father could have a blue-eyed son. How times have changed! A more appropriate 'oscillatory' example might be mutual adaptation, where e.g. one species develops better camouflage whilst another develops better perception.
It is oscillation with a long-term drift, like an old valve radio that needs re-tuning every five minutes to keep it on station.
Hmmm. "like an old valve radio that needs re-tuning" - that could be me. :)
Thanks for your interest Patrick.
I don't know that Lynn Margulis developed the symbiosis origin of eukaryotic cells entirely alone, some reports I've read put it that way, some that others were involved also, but apparently there's no dispute that she gets the credit.
You're right to point out that individualism has not been exclusively British, and your example of Socrates is a great one, he would have to be history's prime example. But the British concept became a political force the like of which the world has never seen.
From memory the stability at the heart of Mendelian genetics refers to the explanation it provided for organisms breeding "true to type"
And no more references to old radio valves that need re-tuning please, that's a little too close to home!
I'm not sure that there's nearly as much "stability" at the genetic level, nor as much "variability" in natural selection to make such a fuss. There is a distribution at the genetic level which suggests that there is a fair amount of variability which will exist in any population for any particular expression. As we all know, many of the basic components of a body are subject to use (and abuse) which will determine the ultimate success of the organism. Aerobic activities will tend to strengthen the heart and respiratory system, so there can be a marked contrast between a "fit" individual and an "unfit" one even if we assumed they shared identical genes. Once an individual has such a range, then successful exploitation of that capability can well garner them more opportunities for mating, which would then provide the selection criteria to ensure that those traits have a better chance of being passed on.
There's nothing radical here, since it is only a "potential" expression which is being considered, but it isn't too difficult to see that over time, those favorable qualities would stand a much better chance of being represented in any population. If we consider that all such expressions operate over a range (and also have boundary conditions that limit their expressions), it isn't difficult to see how variation and natural selection can move in a well-behaved manner.
Plus, her latest work is really out there. Having gone over the data, I can't say that I'm a big fan. Basically, she is advocating that the Eukaryote flagella is the result of another endosymbiotic event with spirochetes. However, the molecular data doesn't really back this up at all. The bacteria flagella and the eukaryotic flagella don't appear to homologous in any way.
She's a smart gal, but she does have her quirks.
The most controversial claim made by Margulis is that eukaryotic flagella evolved from small, corkscrew-shaped bacteria called spirochetes. Many spirochetes are parasites (the best known, Treponema pallidurn, causes syphilis). Others are free-living, found in such exotic environments as the intestines of termites. Regardless of how they live, these unusual bacteria swim with an undulating motion reminiscent of the whiplike movement of eukaryotic flagella. Is this similariti evidence for Margulis's evolutionary claim, or is it simply a coincidence? Why not accept the more orthodox explanation that eukaryotic flagella gradually evolved from the simpler flagella found on many bacteria?
Margulis points out that although both types of flagella are used for locomotion, prokaryotic and eukaryotic structures are very different. Prokaryotic flagella consist of a single, hollow filament of protein that spins on its axis like a tiny propeller. Eukaryotic flagella are much larger; they contain a complex arrangement of 11 microtubules, and the entire structure is surrounded by an extension of the cell membrane. In contrast to the spinning prokaryotic flagellum, the eukaryotic structure propels the cell by lashing back and forth in a whiplike fashion. Because they are so different in structure, function, and perhaps evolutionary origin, Margulis proposes that the eukaryotic flagellum should be referred to by a different term: undullpodium.
It was here: https://www.msu.edu/course/lbs/145/luckie/margulis.html
It might be of some meaning to some people, I don't know...
As a sidenote: Margulis also doubts the HIV/AIDS theory and the official 9/11 theory, in case you weren't aware.
She is more brilliant than even she knows, because her differentiation between Planetary Homeostasis and Homeorhesis, exactly defines these eco-balance=points ...
...as they are self-regulated around "set points" that change with time, and if she put that together with her son, Dorion's "Entropic" observation, then she could further clarify Lovelocks Gaia Hypothesis as these moving balance points apply to the ecobalances that make up the Goldilocks Enigma:
http://evolutionarydesign.blogspot.com/2007/02/goldilocks-enigma-again.html
The "theory" would then clarify the difference between a "living planet" and a non-living mechanism that is being similarly regulated for the same reason by the second law of thermodynamics in a **near-static** yet expanding universe.
Unfortunately, these people all hate the Anthropic Principle with a passion, because they think that it's about god, so it is Lynn's own religious dogma that prevents her from successfully proving her theories.
And she is FAAAAAAAAAAAAR from alone...
Eugene Koonin (2009) Darwinian evolution in the light of genomics. Nucleic Acids Research 37: 1011-1032.
About Marguilis´ book. There is a lot of rambling, a lot of bold statements, including many which have by now (the book was written in 2002) been conclusively proven wrong. For example (as mentioned by another poster) she goes on and on about how archae are just another form of bacteria.
In my opinion this book only makes two important contributions. It calls for a recognition that mutation is not the only form of variation upon which natural selection can act, and it introduces a mechanism for speciation. To summarize the latter; certain endosymbionts can cause infertility when their host organism tries to mate with an individual lacking the endosymbiont. Although this is insightful, and although she correctly points out that no one has connected the dots between this and speciation (it has been known for 20 years), it fits well into the framework of current evolutionary thinking. It is a mechanism for reproductive isolation, just like many others that have been identified. Surprisingly she takes only a few pages to explain these concepts and does not single them out as the more important parts of her book.
Conclusion: we are learning more and more about evolution, and the science is not genuinely stuck in the modern synthesis. It has been 50 years, and much has been learnt. On the other hand Marguilis does not only inspire by thinking outside the box, she also insists that those ideas of hers are correct with a stubbuonness surpassing even of those who still think the modern synthesis is the answer.









