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Friday, July 24, 2026

 

Laker Grounded in Ontario Becomes Local Tourist Attraction

Great Lakes bulker aground
Algoma Equinox got stuck coming off the dock into the St. Clair River in Ontario (Mayor Mike Bradley)

Published Jul 22, 2026 6:13 PM by The Maritime Executive

While it can happen a few times a year along the busy shipping lanes of the Great Lakes and the St. Lawrence, every time one of the big ships goes aground, it becomes a tourist attraction. The 740-foot laker Algoma Equinox was no exception, as it spent the night stuck in the river while the crew and teams from shore coordinated to free the big ship.

The vessel, which operates for Canada’s Algoma Central, entered service in 2013, with the company highlighting a new design for a region that often sees much older ships. At 39,400 dwt, the ship is a familiar sight on the waterways.

The vessel loaded grain at Cargill’s Sarnia Grain Terminal and was heading out around 3:00 p.m. on Tuesday, July 21, from the north slip. It got a little way out when the ship went aground in a shallow area of the St. Clair River and became stuck.

The operator of Sarnia Harbor told the local newspaper, The Independent, he thought it was “the captain’s effort” for navigating too close to the shallow area. However, he also told Sarina News Today that they were looking at if weather and wind at the time were a contributing factor. He admitted there was a storm coming in around the time the vessel was departing.

 

Sightseers turned out, and it became all the buzz on social media (Mayor Mike Bradley)


Two tugs were dispatched, but they determined the stern was firmly stuck. Reports said the crew decided that they were going to have to lighten the stern by pumping ballast water into the forward tanks. 

While the efforts were underway and they were looking to possibly bring in additional tugs from Windsor or other points on the river, sightseers flocked to the river. Sarina Mayor Mike Bradley told the local newspaper the ship had become a tourist attraction. “There are more people down there; it’s all over social media,” Bradley told the local newspaper. “It’s a curiosity, so I understand.”

Bradley said there were two efforts earlier in the day on Wednesday, July 22, before the ship was finally freed around 2:30 p.m. local time. Two tugs aided the ship, which was also using its own power. 

The Canadian Coast Guard said a survey showed no pollution and apparently no damage to the hull. The vessel was getting back underway, bound for Baie-Comeau, Quebec, with its cargo.

Thursday, July 09, 2026

Ecosocialism

Many Fronts, One Struggle: A Report on the 7th International Ecosocialist Encounters


Tuesday 7 July 2026, by William van den Heuvel





In May 2026, more than 250 activists from some forty countries gathered in Brussels Université libre for the 7th International Ecosocialist Encounters. William van den Heuvel reports on the key thematic threads that ran through an ambitious programme: the role of trade unions in the ecological transition; the growing convergence between ecosocialism and degrowth; the centrality of feminist and ecofeminist perspectives; Latin America as the front line of extractivist resistance; anti-campist solidarity with Ukraine and Palestine; and the rise of what speakers termed "fossil fascism." Van den Heuvel argues that the apparent diversity of themes pointed toward a single strategic insight: that these separate struggles share one crisis, and can only be turned around together. [AN]

In the buildings of the Université libre de Bruxelles (Free University of Brussels), more than two hundred and fifty people from some forty countries gathered in mid-May for the seventh International Ecosocialist Encounters. For three days, discussions ranged across trade union struggle and degrowth, care work and the defence of indigenous land, debt, artificial intelligence, Ukraine, and Palestine. A glance at the programme might give the impression of a loosely assembled sequence of disconnected themes. The opposite proved true. It was precisely the breadth that made visible what the organisers were after: demonstrating that all these apparently separate fronts flow from the same crisis, and that this crisis can only be reversed collectively, across borders.

The International Ecosocialist Encounters have been held since 2014 — the initiative arose around a German-language book on an ecosocialist international — and have grown into a recurring gathering of activists, trade unionists, academics, and social movements from several continents. [1] Ecosocialism holds that the ecological crisis cannot be separated from capitalism. An economy driven by profit maximisation and unceasing growth inevitably collides with planetary limits; only a society that produces to meet human needs rather than to generate profit can sustain a good life within those limits. That premise was the common denominator running beneath all the conversations in Brussels.

A sombre backdrop

The gathering took place against a sombre backdrop, and participants made no secret of it. Climate disruption is accelerating, while the European Green Deal — once heralded as the definitive response to warming — is being systematically hollowed out in Berlin, Paris, and Brussels. At the same time, wars, rearmament, and the far-right bloc are all growing. An opening debate on geopolitics drew the connection sharply: the Green Deal had been left largely to capital and had offered working people, and the poorest layers in particular, very little. It is precisely into that gap that the far right thrusts. It frames environmental policy as an assault on ordinary people and wins terrain the left has long vacated.

The labour movement at the centre

That is also the first reason why the labour movement occupied such a central place in Brussels. Trade union engagement has been part of these encounters from the start, and the opening session made clear why. A trade union member from the Democratic Republic of Congo, Hervé Kambiniam of the CDT (Confédération Démocratique du Travail — Democratic Confederation of Labour), [2] described how the war in the east of his country has produced a war economy in which money flows to weapons rather than education or healthcare, while foreign companies and armed groups plunder raw materials and drive the population from its land. From Colombia came the account of trade unionists who, against opposition from part of their own base, have turned against fracking and allied themselves with environmental and rural movements.

From the Basque Country, Ainhara Plazaola of the ELA (Euskal Langileen Alkartasuna — Basque Workers’ Solidarity) confederation showed how things can be done differently: she described how her confederation has brought demands on emissions, energy and water use, and sustainable business plans directly into collective bargaining, and how it secures commitments that workers affected by the closure or downsizing of polluting enterprises can move into other employment or receive a decent income and retraining. [3] The thread running through these discussions was that the opposition between labour and the environment — on which the far right plays so deftly — is not a law of nature but a political choice. Winning the trust of workers requires connecting the ecological transition to the fight for their jobs and income.

Degrowth and ecosocialism

A second thread ran through the debate on degrowth. Ten years ago, that concept would scarcely have been placed alongside socialism; degrowth and socialism were treated as alternatives between which one had to choose. Increasingly, degrowth is now seen as a component of the socialist programme. Daniel Tanuro, one of the driving forces behind the Ecosocialist Manifesto of the Fourth International (IVe Internationale — Fourth International), set out the necessity soberly. [4] Of the nine planetary boundaries identified by science, seven have already been breached. A reduction in energy and raw material consumption is therefore no longer a choice but a given; the only question is whether that reduction happens in a planned and humane way, or as a catastrophic collapse.

In this understanding, degrowth does not mean poverty or austerity, but the abolition of useless production and the restoration of what genuinely matters: time, care, and community. It was telling that a representative of the academic degrowth current and the Marxist ecosocialists explicitly sought each other out in Brussels. There are multiple paths to the same destination, and the willingness to bring those paths together was one of the gains of the conference.

Not without feminism

That degrowth cannot proceed without feminism was a third insight that recurred throughout. Reducing production alone, without redistributing care work, simply shifts the bill on to women, who already perform the largest share of that unpaid labour. Speakers from the ecofeminist tradition argued that care — for people, but also for land, water, and communities — belongs at the heart of an ecosocialist project, not at its margins. In Brazil, as several interventions noted, landless and indigenous women have long put this principle into practice, in their resistance to agribusiness, mining, and dam construction. The idea of radical abundance that emerges from the degrowth movement breaks both with the artificial scarcity of capitalism and with the capitalist image of abundance as endless possession.

Latin America at the front line

Nowhere did the coherence of all these struggles come together as concretely as in Latin America, which commanded a large share of the attention. Michael Löwy, the French-Brazilian Marxist sociologist who was present at all previous encounters and received a personal tribute in Brussels, identified indigenous peoples and peasant movements there as the vanguard of the ecological struggle: they are in the front line of the defence of nature and life, and at the same time the first victims of capitalism. [5] From Ecuador, Leonidas Iza, president of Ecuarunari (Confederación Kichwa del Ecuador — Kichwa Confederation of Ecuador), described how his communities have lived with the land for thousands of years and are now resisting oil extraction in the Amazon region. [6]

From Brazil came a victory from which to draw courage: following a 33-day occupation of the terminals of the US multinational Cargill and a series of actions during the COP30 climate summit, a largely indigenous movement forced the Lula government to reverse the privatisation of three Amazonian rivers — the Madeira, Tocantins, and Tapajós. [7] Mariana Riscalli, a member of the national executive of Brazil’s PSOL (Partido Socialismo e Liberdade — Socialism and Freedom Party), held up that struggle as evidence that social movements must remain independent from the government, even from a progressive government. At the same time, a warning was sounded against what participants called green colonialism: an energy transition that replaces fossil fuels but perpetuates the same plunder of raw materials, the same dispossession and repression, now in the name of clean energy.

Internationalism, not campism

The wars also received their place, and it was precisely here that the political maturity of the gathering asserted itself. Over Russia’s invasion of Ukraine and over European rearmament, a deep dividing line runs through the left, and the Ecosocialist Encounters did not avoid it. Ukrainian ecosocialists from Sotsialnyi Rukh (Соціальний рух — Social Movement), [8] including the trade unionist Artem Tidva and the degrowth specialist Vitaliia Kilinkarova, described the enormous ecological devastation that Putin’s war has wreaked on the country and called for international solidarity from below, on the model of Swedish dock workers who refused to unload Russian ships.

The Syrian researcher Joseph Daher extended the analysis to Gaza and southern Lebanon. What connected the speakers was their rejection of campism — the tendency to stand uncritically behind every adversary of the West, out of opposition to Western imperialism. Solidarity, as the repeated formulation had it, is owed to the attacked peoples and to working people, not to the repressive regimes that oppress their own populations. Rearmament itself was assessed not only as a war threat but as a massive shift of resources away from the ecological transition and social services.

The danger of the far right

What ultimately connects all these fronts is the rise of the far right. Löwy preferred the term neo-fascism: it shares much with classical fascism but is radically neoliberal rather than corporatist, and it uses religion without itself being religious. At the conference the phenomenon was also given a new name: fossil fascism. The far right is less and less openly denying climate change; instead it turns against climate policy, as an ally of the fossil industry, and sometimes even presents immigration as an ecological threat. A workshop on artificial intelligence gave this reaction a further technological face. The power of a handful of tech companies over information, communication, and surveillance, and the quasi-religious visions of the future held by figures such as Elon Musk, constitute a distinct front in the same struggle — one on which resistance, from tech workers to people living near data centres, is only just beginning.

A convergence of movements

Here lies the core of what the encounters sought to convey. The women’s movement, the indigenous struggle, the struggle of working people, the fight against debt and extractivism, resistance to war and to the far right: these are not separate campaigns but expressions of a single crisis of capitalism. Tanuro named this a convergence of movements — of women, indigenous peoples, LGBTQI+ people, peasants, and workers — and Löwy described ecology not as a chapter but as a red thread. Breaking with productivism does not mean abandoning the class struggle; it means broadening it. The gathering itself, with its forty countries and its difficult but real conversations between academics and activists, between North and South, was an exercise in precisely that broadening.

That raises the question of what ultimately matters: how to give that convergence a form capable of compelling concrete change. The answer that was most concretely formulated in Brussels was organisational. Alongside the encounters themselves, the Global Ecosocialist Network presented itself — a worldwide collaboration with a small secretariat, a low threshold for participation, and online debates in which organisations from several continents exchange experiences and strategies. The network and the encounters are complementary and will seek closer collaboration in future.

From the Netherlands, activists from LinksBoven (the ecosocialist member movement within PRO — Progressief Nederland, the recently formed merger of GroenLinks and PvdA) and from the new initiative Democratisch Ecosocialisten (Democratic Ecosocialists) [9] were present. The next edition of the Encounters, the 3rd Latin American and Caribbean Ecosocialist Encounter, will take place next year in Colombia, possibly followed a year later by the 8th International Ecosocialist Encounters in Ecuador — a telling shift towards the continent where the struggle is waged most fiercely and most boldly.

Whether that will be enough, no one knows. An Argentine speaker reminded the gathering that debates must remain rooted in concrete struggle and independent of governments, including supposedly progressive ones. Löwy cited Brecht: those who fight can lose, but those who do not fight have already lost. That is not reassurance, and it was not intended as such. What the 7th Ecosocialist Encounters showed is that the individual movements are each too weak for the task on their own, and that coordination among them — across sectors, movements, and borders — is no longer a luxury but the precondition for achieving anything. The building blocks are there. They only need to be stacked.

3 July 2026

Translated and annotated by Adam Novak for ESSF from Grenzeloos.

Footnotes

[1] The previous (sixth) International Ecosocialist Conference was held in Buenos Aires, Argentina, in May 2024. See: Germán Bernasconi, "Ecosocialism to change everything – the Sixth International Ecosocialist Conference", Europe Solidaire Sans Frontières, 20 May 2024. Available at: https://www.europe-solidaire.org/spip.php?article70858

[2] The CDT (Confédération Démocratique du Travail) is one of the major trade union confederations in the Democratic Republic of Congo. Kambiniam’s affiliation and the confederation’s full name are given in the conference programme; further details were not available at time of publication.

[3] ELA (Euskal Langileen Alkartasuna — Basque Workers’ Solidarity) is the largest trade union confederation in the Basque Country, representing more than 100,000 workers. It defines itself as independent of both employers and the state, and critical of institutionalised social dialogue. See: https://www.ela.eus/en/about-ela

[4] Daniel Tanuro is a Belgian ecosocialist activist and agronomist, author of L’impossible capitalisme vert (2010, translated as The Impossibility of Green Capitalism) and coordinator of the drafting committee for the Manifesto for an Ecosocialist Revolution adopted by the Fourth International at its 18th World Congress in 2025. For his foundational statement of ecosocialist strategy, see: Daniel Tanuro, "Foundations of an ecosocialist strategy", Europe Solidaire Sans Frontières, 4 April 2011. Available at: https://www.europe-solidaire.org/spip.php?article22770

[5] Michael Löwy is Emeritus Research Director at the CNRS (Centre National de la Recherche Scientifique — National Centre for Scientific Research) in Paris. He is co-author, with Joel Kovel, of An Ecosocialist Manifesto (2001) and author of Ecosocialism: A Radical Alternative to Capitalist Catastrophe (Haymarket, 2015). His concept of "fossil fascism" as a description of the far right’s relationship to climate denial and the fossil industry has been developed in recent years alongside his broader ecosocialist and anti-neofascist analysis.

[6] Leonidas Iza is a Kichwa leader and president of Ecuarunari (Confederación Kichwa del Ecuador), the Andean regional branch of the indigenous movement representing Kichwa peoples of the highlands, and a former president of CONAIE (Confederación de Nacionalidades Indígenas del Ecuador — Confederation of Indigenous Nationalities of Ecuador). He was the only candidate in Ecuador’s 2025 presidential election to oppose expansion of extractive industries. Iza faces multiple legal proceedings and surveillance by the Noboa government.

[7] The occupation was centred on Cargill’s port terminal in Santarém, in the state of Pará. Several thousand people from fourteen ethnic groups, primarily from the Munduruku, Arapiun, and Apiaká peoples, blocked road access to Santarém airport on 4 February 2026 and occupied Cargill’s terminal on 21 February. The Lula government revoked the privatisation decree on 24 February 2026. COP30 took place in Belém, Brazil, in November 2025. Sources: Green Left, 27 February 2026; Amazon Watch, 27 February 2026.

[8] Sotsialnyi Rukh (Social Movement) is a Ukrainian democratic socialist organisation founded in 2015. It stands for democratic anti-capitalism, feminism, and ecosocialism. Since Russia’s full-scale invasion in February 2022, it has campaigned internationally for support for Ukrainian resistance, debt cancellation, and reconstruction under citizen control. See: Sotsialnyi Rukh (Social Movement), "Ukraine: Introducing Sotsialnyi Rukh (Social Movement)", Europe Solidaire Sans Frontières, 12 March 2019. Available at: https://www.europe-solidaire.org/spip.php?article61539

[9] Members of SAP–Grenzeloos (Socialist Alternative Politics — Grenzeloos), the Dutch section of the Fourth International, are active in Democratisch Ecosocialisten.

Monday, June 15, 2026

 

One billion times the distance from the Earth to the sun: First global map of mycorrhizal fungi reveals true scale of underground networks across the planet




Society for the Protection of Underground Networks
Mycorrhizal Infrastructure Map 

image: 

Global map of hyphal density of AM fungi.

view more 

Credit: Truth & Beauty / Moritz Stefaner Justin Stewart - SPUN





Mycorrhizal fungi form underground networks that sustain plant life and help regulate Earth’s climate by drawing carbon into soils. In a study published today in Science, an international team of researchers produced the first global maps estimating the distribution and mass of the Earth’s arbuscular mycorrhizal fungal networks. Published alongside an interactive visualization that helps reveal the scale of this underground fungal infrastructure, the research will help scientists and decision makers understand where these vital fungal systems are thriving and where they are threatened. 

Researchers found: 

  • Global topsoils contain ~110 quadrillion kilometers of arbuscular mycorrhizal fungal network – made up of tubular cells known as hyphae. This distance is almost a billion times the distance from the Earth to the sun.

  • Grassland ecosystems are home to an estimated ~40% of Earth’s arbuscular mycorrhizal fungal infrastructure. The flooded grasslands of South Sudan, the Everglades in Florida, and the Tibetan plateau have exceptionally high predicted network density.

  • AM fungal networks transport an estimated ~4 billion tons of CO2e into soils each year (equivalent to 11% of all human-related carbon-dioxide emissions).

  • On average, large-scale agricultural crop lands are predicted to be associated with ~50% lower network densities. While more work is needed to link specific farming practices to mycorrhizal health, scientists worry that less dense networks diminish a soils’ ability to store carbon, cycle nutrients, and resist stress.

Arbuscular mycorrhizal fungi (known as AM fungi) form symbiotic trade relationships with ~70% of plant species on Earth. The fungi provide nutrients and water in exchange for carbon produced by plants. As ecosystem engineers, these networks form a critical living infrastructure that draws carbon into soils and supports much of life on Earth. Last year, in Nature, researchers published global analyses of the diversity patterns of underground mycorrhizal fungal communities accompanied by a digital tool, the Underground Atlas, to help decision-makers locate predicted underground biodiversity hotspots. But until now, no-one has attempted to predict and visualize the physical density and global distribution of AM fungal networks.

The researchers assembled data on the density of AM networks from over 16,000 soil-cores collected across Earth. They developed machine-learning models that incorporated data layers from deserts and tundra to forests to predict network density in unsampled ecosystems. In collaboration with the Physics of Behavior group at research institute AMOLF, the team calibrated their model with robotic imaging of over 300,000 living AM fungal hyphae grown in the lab. Using these datasets, they estimate that AM fungal networks have a total length of ~110 quadrillion kilometers and a mass of ~300 megatons of carbon (4-6x the mass of all living humans). 

“It is hard to overstate the importance and enormity of these fungi” said lead author Dr. Justin Stewart, with the Society for the Protection of Underground Networks (SPUN). “There could be up to 10 meters (32 feet) of mycorrhizal network in just a teaspoon of soil.”

Often called one of the Earth’s circulatory systems, mycorrhizal networks move carbon, water, and nutrients across underground ecosystems. In healthy soils, mycorrhizal networks can increase the foraging area of plant roots by up to 100 times, while providing > 80 percent of a plant’s phosphorous. 

“With the emergence of new technologies in high-resolution imaging, machine-learning and robotics, we are starting to reveal what has long been hidden under our feet” said co-lead author, Dr. Corentin Bisot, an AMOLF biophysicist. “We are learning how the complex bodies of network-forming fungi transport nutrients and help regulate the climate.” 

The team worked with award-winning data visualization designer Moritz Stefaner to build the Mycorrhizal Infrastructure Map. It is the first time the Earth’s fungal infrastructure has been seen at this scale and resolution (estimates are calculated for every 1km2 of terrestrial land, excluding ice caps and areas lacking enough data to predict). The underlying data are available to download for governments and decision-makers to begin monitoring the health of critical underground fungal communities. 

Last year, several of the same authors published a cover story in Nature in which they described how mycorrhizal fungal networks and their plant partners build hyper-efficient supply chains to trade carbon and nutrients, measuring carbon flows inside these living transport systems that can reach speeds of up to 120 um/sec (if one was inside the network, these speeds would feel like ~400km/hr). The current study is a critical step towards understanding how carbon and nutrient flows unfold on a global scale.

The study also documented potential threats. Mycorrhizal densities across croplands are predicted to be roughly half those in wild ecosystems. Wild grassland ecosystems were found to contain ~40% of the world’s arbuscular mycorrhizal biomass. Yet grasslands are among Earth’s least protected ecosystems and are being transformed into farmlands four times faster than forests. This reinforces a finding published by SPUN researchers last year showing that 95% of the biodiversity hotspots for arbuscular mycorrhizal fungi are located outside protected areas. 

For evolutionary biologist Dr. Toby Kiers, Executive Director of SPUN, this growing body of research is critical in developing more precise climate policies. “Fungi have been ignored in climate and conservation for too long. Now is the time to change that trajectory.” Kiers was recently named a prestigious MacArthur Fellow and winner of the Tyler Prize, known as the “Nobel Prize for the Environment,” for her work on plant-fungal systems.  

“Mycorrhizal fungi have shaped life on earth for hundreds of millions of years, but we still understand too little about how the infrastructure of these living transport systems is distributed across the planet,” added co-author and biologist Dr. Merlin Sheldrake. “This study is an exciting step towards understanding how this planetary circulatory system operates and suggests ways that we can better work with fungi to help address many of the unfolding challenges of our times, from food security to climate change.”

This study helps quantify the extraordinary extent of AM fungal networks, but it also reveals how much remains unknown by pinpointing many regions of the planet which remain unsampled. 

***

Society for the Protection of Underground Networks (SPUN):
SPUN was founded in 2021 as a non-profit scientific research organization with a mission to map and protect Earth’s mycorrhizal networks. In collaboration with researchers and local communities, SPUN is accelerating efforts to protect the underground ecosystems largely absent from conservation and climate agendas. To learn more about SPUN, visit: https://spun.earth/.

Media contact:
Magda Czyz
magda@spun.earth
Society for the Protection of Underground Networks (SPUN)

Link to press kit:
Photos and more information

 

All Authors:
Justin D. Stewart, Corentin Bisot, Rachael I.M. Cargill, Michael E. Van Nuland, Heidi Jayne Hawkins, Loreto Oyarte Galvez, Malin Klein, Marije van Son, Victoria Terry, Louis Paré, Claudia Banchini, Franck Stefani, Felix Kahane, Kai-Kai Lin, Renato K. Braghiere, Katie J.  Field, Nadejda A. Soudzilovskaia, Jinsu Elhance, Vasilis Kokkoris, Merlin Sheldrake, James T.  Weedon, Thomas S. Shimizu, Stuart West, E. Toby Kiers


Network architecture of fungal mycelium 

Network architecture of fungal mycelium. Mycelial architecture varies across strains and species. Networks imaged at the AMOLF biophysics institute in Amsterdam.

Credit

Corentin Bisot - VU Amsterdam, AMOLF Justin Stewart - SPUN



Mycorrhizal fungi 

Mycorrizhal fungi under the microscope at AMOLF biophysics institute in Amsterdam. The circular structures are spores. Color is altered for legibility. 

Credit

Tomás Munita

Sampling in the Gobi Desert 

Close up of soil core extraction.

Credit

Tomás Munita

Arbuscular mycorrhizal fungi form delicate networks of mycelium 

Fungal networks imaged using a microscope at AMOLF biophysics institute in Amsterdam. Threads are arbuscular mycorrhizal hyphae.

Credit

Loreto Oyarte Gálvez - VU Amsterdam, AMOLF

 

 

Capacity of certain unicellular organisms to stick together may be key to animal evolution




Indiana University






A recent study by Ruibao Li and Jennah Dharamshi published in Nature may help us understand the beginnings of animal evolution billions of years ago. These findings are the result of a collaboration between researchers at Indiana University Bloomington, the Institute of Evolutionary Biology in Spain and Uppsala University in Sweden, and was led by J. P. Gerdt and Iñaki Ruiz-Trillo.

These researchers found that after feeding a specific bacteria to a certain unicellular relative of animals, the single cells began to stick to one another, revealing a possible mode by which our ancestors began to evolve into animals billions of years ago.

Animal bodies are made up of trillions of cells that stick together and cooperate. Billions of years ago — before animals evolved — every living thing on earth was a single-celled organism. Eventually some of these cells began sticking together, working together and then reproducing as multicellular organisms. Some of these early multicellular organisms evolved into present-day plants or fungi, while others evolved into animals.

How the cells began to stick together and why they did so has long been a mystery to scientists. To get to the bottom of this enigma, Li and his colleagues studied Ministeria vibrans, a unicellular organism that shares ancient ancestors with present-day animals.

M. vibrans survives by eating bacteria. Li rigorously tested different bacterial foods until he found one that encouraged single M. vibrans cells to stick together and become multicellular. The bacteria got trapped between the aggregating cells, meaning that it was more efficient for M. vibrans to collect food by sticking together rather than remaining as single-celled organisms. Further, by sticking together, the cells might be able to protect their food from other organisms.

Sticking together also provides opportunities for cells to exchange genes via mating, which may produce new genetic combinations that enable adaptation to new environments.

Li and Dharamshi observed that when M. vibrans evolved from unicellular to multicellular, it produced the same proteins that many animal cells use to stick together. The multicellular form of M. vibrans also produced many proteins that animal cells use to communicate and coordinate behavior. The team concluded that the unicellular organisms that evolved into animals also likely used these proteins to form multicellular bodies and cooperate.

Li and his colleagues are excited to uncover further insights from the aggregation behavior of M. vibrans. Because the organism is much simpler than humans, it is easier to study, meaning it could even help reveal overlooked genes involved in certain developmental processes or diseases.

However, “What this organism is most powered to answer is what the unicellular ancestor of animals was like,” said J. P. Gerdt, associate professor of chemistry at Indiana University Bloomington. “It’s one of the best systems we have to go back a billion years to see what our ancestors were like at that stage.”