Column

Biology

Creed

17 May 2023

7 min read

Not just red in tooth and claw: biology's big debates

In the second of a series, biologist and priest, Andrew Davison, examines why it’s important to keep up with biology’s big debates.

Andrew Davison

Andrew works at the intersection of theology, science and philosophy. He is Canon and Regius Professor of Divinity at Christ Church, Oxford.

An osprey, in flight, holds a fish in its claws.

‘Wherever there’s water or air to navigate, the laws of fluid dynamics are bound to throw up wings, and bodies shaped like fish.’

Photo by Mathew Schwartz on Unsplash.

There’s hardly been a livelier time for evolutionary science than today; indeed, passions can run high. It’s not that Darwin’s vision of evolution is fundamentally in doubt: species adapt by natural selection, there’s variation between individuals, and those better adapted for their environment survive more often, passing on their genes to their children. In that, the theory of evolution stands, but many other parts of the evolutionary picture from the second half of the twentieth century are coming under criticism. That includes the following maxims:

‘the only significant form of inheritance involves genetic code’,

‘nothing that happens to an organism during its lifetime is passed on to its progeny’,

‘we agree what we mean by “species”’,

‘genes pass down the branches of the tree of life, not between them’,

and ‘evolution is fundamentally all about competition, not cooperation’.

Among the excellent crop of writers on these themes, Eva Jablonka and Marion Lamb stand out for their elegant prose, and a gift for communicating complex ideas clearly. As they recognise, the standard mid-twentieth century model of evolution might be worth criticising, but it’s also landed all sorts of important basic points. (They list ten.) The shortfall of the earlier, dominant theory was in being too narrow, with each insight too quickly eclipsing others.

Here are two examples. First, the classic twentieth century picture saw inheritance in terms of DNA and genes, passed on by ‘germline’ cells, such sperm and pollen. That’s all true, but it shouldn’t restrict our wider view of inheritance to that. Today, writers such as Jablonka and Lamb stress that organisms inherit from their parents (or parent) in all sorts of ways.

A second plank of the twentieth century picture is that evolution involves descent from a common ancestor. Again, that says something vital, even central, accepted by evolutionist old and new. The twentieth century position, however, added a restriction: that’s all that’s important on this score. The newer perspective recognises that while genes are – of course – central, and passed on from parent to child, organisms also swap genes between themselves (between branches of the tree of life, not just along those branches), even between very different species.

If we’re not careful, what’s written and taught (not least by theologians), even with the best will in the world, will be thirty or even fifty years out of date.

There’s a lot of excitement around these sorts of claims (and, remember, Jablonka and Lamb make eight more), and that can get quite noisy. Defenders of the older, narrower picture typically say that the newer themes are simply fuss over minor points. Advocates of the newer perspective disagree, saying that the twentieth century picture risks missing some important features of biology, which are now coming into better focus.

Why such debates matters

Why might this ferment among biologists matter for a site like this one, and for theologians, and discussions of religious matters? Well, for one thing, as I pointed out in my previous article, nothing quite dissolves the supposed animosity between science and religion (which is, after all, a relatively recent invention) like theologians and religious people getting excited about biology. It’s also important that any humanities scholar, the theologian among them, who’s engaging with science should keep up to date. If we’re not careful, what’s written and taught (not least by theologians), even with the best will in the world, will be thirty or even fifty years out of date.

But there’s more at stake. As we have seen, the twentieth century picture, for all it brought an admirable clarity to evolutionary thought, was reductionistic. We see that in Jablonka and Lamb’s exhortation to scientists: ‘yes, stress x, but don’t think that means you have to deny y.’ A religious vision tends to be an expansive one. It wants to recognise the reality and value of all sorts of things. Yes, there’s matter, atoms, molecules, and genes, but there’s also organisms, agents, cultures, groups, economies, hopes, loves. They’re all real. We can’t reduce one to the other: not organisms to genes, or agents to economies. A turn from reduction is welcome.

More than that, almost everything in the emerging twenty-first century view of evolution is fascinating from a theological perspective.

Take convergence, for instance. It turns out that evolution isn’t just driven by randomness, or by the demands of the surroundings. Also important are various features of physics, or mathematics – the contours of reality – that throw up elegant solutions to evolutionary problems, which are adopted by evolution time and again. Wherever you need to sturdy and space-efficient packing of cells (as in a honey comb, or a a wasp’s nest), the hexagon is ready and waiting. Wherever there’s water or air to navigate, the laws of fluid dynamics are bound to throw up wings, and bodies shaped like fish, dolphins, and penguins (which are all quite similar in shape).

How do we know this? Because evolution has converged on wings and that body shape independently, many times, as also on eyes, and everything else that Simon Conway Morris lists in the nine closely printed columns of convergences in the index to his book Life’s Solution. Evolution certainly involves randomness and need, but alongside them is something more like Plato’s forms: timeless realities, there to be discovered and put to work. Among the more theological of these eternal verities, covered in Conway Morris’s book, are perception, intelligence, community, communication, cooperation, altruism, farming, or construction

Exceeding a zero-sum game

Then there’s cooperation. Ever since Darwin’s Origin was published, and, even more, ever since Tennyson wrote about nature ‘red in tooth and claw’, theologians have been embarrassed about the place of cooperation in their vision of the world. Now, however, it turns out, competition isn’t the only force at work in biology or evolution after all. One of the features of reality that evolution discovers and puts to work again and again is cooperation, and ways to exceed a ‘zero-sum’ game. We see that in cooperation within a species, but also in cooperation between species, which is ubiquitous in nature: called mutualism, it’s found everywhere. As a rule, once two species stick around in proximity for the long run, down many generations, their relationship will turn to mutual benefit.

Ethicists are often wary of the suggestion that we can look at the way things are, and read a moral code there (getting an ‘ought’ from an ‘is’), but it’s an unusual person whose vision of right and wrong isn’t shaped, to some degree, by a sense of what the world is like. Well, it turns out that nature bears witness to the enduring worth of cooperation, and not only to competition.

In the first of these articles on biology, I pointed out the significance of ethics in thinking about biology, and about evolution in particular. For better or worse, and often for worse, thinking about evolution has been an ethical, social, political story. The evolutionary has been put to work for immoral, ends. It turns out to be wrong twice over to suppose evolution commends only competition. It’s wrong, first of all, because we are rational creatures, who can aspire to an understanding of good and evil that transcends the realm of nature. But also, as we now see, it’s wrong even to suppose the nature is only red in tooth and claw. There’s competition, but there’s also a lot of cooperation.

Suggested further reading

Archibald, John. 2014. One Plus One Equals One: Symbiosis and the Evolution of Complex Life. Oxford: Oxford University Press. An accessible introduction to biological mutualism, with an emphasis on the role of hybrid organisms (one living inside another) in major evolutionary transitions.

Bronstein, Judith L., ed. 2015. Mutualism. Oxford: Oxford University Press. The new standard treatment of biological mutualism.

Morris, Simon Conway. 2008. Life’s Solution: Inevitable Humans in a Lonely Universe. Cambridge: Cambridge University Press. A comprehensive discussion of convergence in evolution.

Day, Troy, and Russell Bonduriansky. 2018. Extended Heredity: A New Understanding of Inheritance and Evolution. Princeton, NJ: Princeton University Press. An engaging introduction to a broadened picture of inheritance.

Davison, Andrew. 2020a. Biological Mutualism: A Scientific Survey. Theology and Science 18 (2): 190–210. An accessible survey of some of the science of biological mutualism.

———. 2020b. Christian Doctrine and Biological Mutualism: Some Explorations in Systematic and Philosophical Theology. Theology and Science 18 (2): 258–78. A foray into some of the significance of mutualism for Christian theology.

Jablonka, Eva, and Marion Lamb. 2020. Inheritance Systems and the Extended Synthesis. Cambridge University Press. A short discussion of many of the more expansive aspects proposed for contemporary evolutionary thought.

Jablonka, Eva, Marion J. Lamb, and Anna Zeligowski. 2014. Evolution in Four Dimensions: Genetic, Epigenetic, Behavioral, and Symbolic Variation in the History of Life. Revised edition. Cambridge, MA: MIT Press. One of the most substantial discussions of the new perspective.

Laland, Kevin, Tobias Uller, arc Feldman, Kim Sterelny, Gerd B. Müller, Armin Moczek, Eva Jablonka, et al. 2014. Does Evolutionary Theory Need a Rethink? Nature 514 (7521): 161–64. MA short two-sided piece, asking whether a transformation in evolutionary thinking is under way.

Article

Belief

Creed

Weirdness

24 June 2024

6 min read

Revival – really?

Are we moving beyond the secular scepticism of religion?

Abigail Frymann Rouch

Abigail is a journalist and editor specialising in religious affairs and the arts.

A cross held aloft is illumminated by a shaft of light that also reveals hands raised in priase.

Jacob Bentzinger on Unsplash.

Whisper it if you will, but an increasing number of observers are wondering if we are creeping towards some kind of Christian revival. High-profile public figures such as former atheist author Ayaan Hirsi Ali, novelist Paul Kingsnorth, comedian Russell Brand and storyteller Martin Shaw have converted. Articles and podcasts from secular writers and thinkers extolling Christianity’s influence on Western culture, the societal benefits of faith, or a renewed appreciation of the sacred, are becoming a more common sight than those tub-thumping for atheism.

Among these thinkers is historian Tom Holland, who has argued that Western values, including secularism, socialism, feminism and human rights have their roots in a “Christian seedbed”. Some secular female writers are finding in the sexual revolution much to regret: Mary Harrington, author of Feminism against Progress, and writer Louise Perry, who penned The Case Against The Sexual Revolution, are opposed to casual sex and in favour of marriage.

Then there’s the Canadian academic and YouTube hit Jordan Peterson, currently on a speaking tour titled, “We who wrestle with God” and offering Bible-based life lessons to his hungry, mainly male, hearers. Even the arch-atheist Richard Dawkins said in a radio interview this Easter that he considers himself a cultural Christian and “I sort of feel at home in the Christian ethos.”

A term has been coined for someone close to Christianity but just outside it, such as Holland: “Christian-adjacent”. The broadcaster Justin Brierley has devoted a book to this apparent renewed interest, The Surprising Rebirth of Belief in God. In it he argues the New Atheism that fed off the horror of the religious extremism behind 9/11 is “a largely spent force” that has splintered into factions. (Sunday Assembly, the gathering for non-religious people, has seen its income plummet from £267,161 in 2016 to just £28,120 in 2022. Its leaders were approached for comment.)

What does all this amount to? Are we moving beyond the secular scepticism of religion? Does anyone want to return to the judgemental, Anglo-centric Christianity of a previous age?

I wish to be somebody who goes, ‘But look, come with me, see this, see that. Does that speak to you?’ The whole of my writing is to help people get away from preconceptions.”

Iain McGilchrist

The author and psychiatrist Iain McGilchrist says of a possible religious revival: “I feel that there is [one], and I feel that there will be. And I think it's important.” Already, he says, “It's much easier to talk about religion and one's religious beliefs … than it would have been 20 years ago [and] a lot of people say that.” Some young people who are not from a religious background have surprised him by finding their way to religion.

People he knows who have turned to Christianity in mid-life have moved “to the Catholic Church, but most of them to the Orthodox Church, because they see … genuine valid, uninterrupted tradition of the divine and the sacred, of worship of it, of the sense of wonder, the sense of relative humility, not triumphant exaltation, and the sense of a shared oneness that is encaptured in these ancient rituals.”

McGilchrist believes the route of fulfilment “is oneness with nature, with the Divine and with one another,” and that rediscovering a connection to the Sacred (he refers to the Sacred or Divine rather than religion) would address other pressing issues such as the “poisoning of the oceans”, due to “a proper understanding of our position in the cosmos, not as the exploiter, but as the caretaker.”

Of his own views, he says: “I genuinely am not sure how to understand what it means to be a Christian really, but I suspect that I am one.” He stresses that he doesn’t want anyone to be put off by their preconceptions of what that might mean. “I wish to be somebody who goes, ‘But look, come with me, see this, see that. Does that speak to you?’ The whole of my writing is to help people get away from preconceptions.”

“There is an intellectual revival, if you like, because the complacent secularism, which culminated in people like Richard Dawkins, is obviously broke.”

Andrew Brown

Mark Vernon, a psychotherapist, author and former Church of England priest, also perceives a shift in the conversation around religion, and a new sense of enquiry that did not exist 20 years ago. He believes “a mystical Christianity” would be needed to reach the many people who describe themselves as “spiritual but not religious”.

Author of Spiritual Intelligence in Seven Steps, Vernon enjoys the silence of a Buddhist meeting or being out in nature on pilgrimage to holy places, “feeling different energies, different pulses, different rhythms … Being in a place where you just feel there's a different thing going on here, that can be healing. I think a lot of mental health is due to just people being trapped in very narrow worldviews.”

Dr Vernon, whose faith journey has included atheism, follows what he calls a “commodious” Christianity – “my perspective on the universal story, which I think is ultimately beyond any one expression of it – and focuses on the “Christ [that] lives within me”, in contrast to “more socially driven” or “conversion-driven” Western Christianity.

For Abby Day, Professor of Race, Faith and Culture at Goldsmiths, University of London, any talk of religious revival is “wishful thinking” but like Vernon she believes that if anything were to speak to the “spiritual but not religious” it would be “within them, or maybe within nature” and “non-institutional”.

Professor Day is wary of the interest in Christianity from the populist right, as seen in the European elections and US Evangelicals’ support of Trump. They “claim Christianity, but what they're claiming is a national identity, and so we're seeing Christianity be weaponised” to deliver a conservative agenda, she says.

Day, author of Why Baby Boomers Turned from Religion, takes issue with some of Holland’s arguments, saying: “The Churches have not shown themselves to be exemplary models of equality or human rights.”

Veteran religious affairs journalist Andrew Brown, co-author of That Was The Church That Was: How the Church of England lost the English people, is less hostile. He says: “There is an intellectual revival, if you like, because the complacent secularism, which culminated in people like Richard Dawkins, is obviously broke.” But he adds: “Most of the stuff that's interesting and new is coming from people who are either Christians or Christian-adjacent.” But, he adds, “It takes a long time for the ideas of the intelligentsia to filter down … “If there is to be anything like [a revival], it has to start locally, and far below the radar of news.” So, for example, what impact has 14 years of austerity had that have led to millions of people attending food banks and warm spaces in churches? (According to 2023 data from Savanta and the National Churches Trust 5 per cent of UK adults visited a church last year to access a food bank (equivalent to around 3.4 million people) and 4 per cent (2.7 million) for a warm space.) “That has to be doing something, but I don’t know what,” he laughs, adding: “There really isn’t enough decent religion reporting because journalism is in crisis.”

That puts established religion in good company. But the Churches the Boomers rejected may have become humbler during their exile, and alternatives are available that offer different emphases. Vernon notes that the Orthodoxy that has attracted Kingsnorth and Shaw – Vernon’s “favourite convert of this revival” – is comfortable with other faiths and is more about participation through liturgy than converting to safeguard your immortal soul. And one attraction of the silence Vernon enjoys is that it doesn’t give glib answers, including to the profound questions around meaning, purpose and identity that beset nation, Church and individuals alike.

Putin’s violent ambitions could yet drive people to prayer. For now, at least, the more thinkers publicly take Christianity seriously and rediscover its wonder and mystery, the fairer hearing its stories, values, social benefits and cultural legacy will receive in the rowdy market-place of ideas, offering – at the very least – the cradle agnostic a more informed choice.