{"id":171001,"date":"2025-12-06T20:14:08","date_gmt":"2025-12-06T20:14:08","guid":{"rendered":"https:\/\/www.newsbeep.com\/nz\/171001\/"},"modified":"2025-12-06T20:14:08","modified_gmt":"2025-12-06T20:14:08","slug":"which-animal-could-replace-humans-as-earths-dominant-species","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/nz\/171001\/","title":{"rendered":"Which animal could replace humans as Earth\u2019s dominant species?"},"content":{"rendered":"

The idea of life continuing on Earth without humans is difficult to fathom. Though our species has only been here for a relatively short period of time, we\u2019ve altered the planet in countless ways, leaving our \u201chuman fingerprint<\/a>\u201d across every inch of land and sea.<\/p>\n

Still, Earth\u2019s history shows that no species lasts forever. It can be sobering to consider a future without us, but it also sparks plenty of curiosity about what might follow in our absence.<\/p>\n


\n \"EarthSnap\"\/
\n<\/a><\/p>\n

Human beings<\/a> have been at the center of ecological change on Earth for thousands of years. Our inventions and communities have reshaped forests, oceans, and even the atmosphere.<\/p>\n

Yet many researchers say nature will adapt once we are gone. This leads to questions about who \u2013 or what \u2013 would occupy our spot.<\/p>\n

Earth after humans<\/p>\n

Professor Tim Coulson<\/a> from the University of Oxford<\/a> has spent years studying biology and evolution. He believes our disappearance could open the door to surprising new species that take over Earth\u2019s ecological roles.<\/p>\n

In his book, The Universal History of Us, he traces life\u2019s entire history and zeroes in on a single, striking prediction about what might come next.<\/p>\n

One of his main themes involves evolution, which he describes as the \u201cgradual change in living organisms over time as they better adapt to their environments.\u201d<\/p>\n

He emphasizes that \u201cmost mutations are harmful, but a few provide a survival or reproductive advantage.\u201d Because genes are heritable, these beneficial mutations become more common over generations.<\/p>\n

Natural selection and change<\/p>\n

Mutations, in Coulson\u2019s view, drive life forward despite the risks. Yet he reminds readers that no species is permanent.<\/p>\n

\u201cExtinction is the fate of all species, including humans<\/a>, although let\u2019s hope our demise is far in the future.\u201d<\/p>\n

That message can feel unsettling. But it also serves as a reminder that every life form, no matter how successful, eventually faces an endpoint.<\/p>\n

Coulson\u2019s outlook stems from years of research into how species emerge, survive, and sometimes vanish. \u201cI started to wonder what species might take our place if humans, and our close great ape relatives, were to die out,\u201d he says.<\/p>\n

Once humans are removed from the picture, Earth\u2019s ecosystems could find balance again, which might allow new creatures to fill the empty slots.<\/p>\n

New forms of intelligence emerge<\/p>\n

Nobody knows if the next ruling life form would mirror humanity. Coulson proposes that \u201cnew forms of intelligence and complexity could emerge in unexpected ways.\u201d<\/p>\n

This opens the possibility that a future species might come up with solutions and technologies unlike any we can picture right now.<\/p>\n

Some believe that primates are the likeliest successors, but Coulson raises doubts.<\/p>\n

\u201cPrimates depend heavily on strong social networks,\u201d he explains, along with the idea that \u201cthey engage in activities like hunting, grooming, and defense, which are essential for their survival. These constraints might help them struggle to adjust to a world undergoing dramatic ecological shifts.\u201d<\/p>\n

Potential successor to humans on Earth<\/p>\n

In place of our primate relatives<\/a>, Coulson offers a contender that many might find startling: the octopus<\/a>. He points to their cleverness and adaptability.<\/p>\n

\u201cTheir ability to solve complex problems, communicate with one another in flashes of color, and manipulate objects suggests that, given the right environmental conditions, they could evolve into a civilization-building species.\u201d<\/p>\n

He adds, \u201ctheir advanced neural structure, decentralized nervous system, and remarkable problem-solving skills make several species of octopus well suited for an unpredictable world.\u201d<\/p>\n

Octopuses already have a reputation for being creative<\/a> and a bit mischievous.<\/p>\n

\u201cSome individuals even escape from their tanks at night in some research centers, visiting those of their neighbors, believe it or not,\u201d Coulson says. They are known to use tools, open jars, and display signs of curiosity.<\/p>\n

Life underwater<\/p>\n

If humans were gone, oceans might become even more central to Earth\u2019s future. Though land-based creatures have typically held top positions on the food chain, Coulson notes a critical challenge for octopuses<\/a>.<\/p>\n

\u201cOctopuses are unlikely to adapt to life on land due to their lack of a skeleton, which makes swift and agile movement out of water challenging,\u201d he explained.<\/p>\n

\u201cWith evolutionary advances, it is possible, if not probable, that they might develop ways to breathe outside of water and eventually hunt terrestrial animals like deer, sheep, and other mammals \u2013 assuming they have survived the catastrophic event that drove humans extinct.\u201d<\/p>\n

That sounds extreme. Yet Coulson is simply highlighting how evolution can lead life down paths that seem impossible at first.<\/p>\n

What would octopus-Earth look like?<\/p>\n

Octopuses<\/a> might build underwater habitats, find new ways to interact with their surroundings, and even reach beyond the waves one day.<\/p>\n

\u201cWould octopuses build vast underwater cities and come onto land wearing breathing apparatus to shoot a deer? We\u2019ve no way of knowing,\u201d he says.<\/p>\n

No one predicted that ancient primates would slowly turn into bipedal humans with advanced technology.<\/p>\n

Coulson believes that \u201crandom mutations, unforeseen extinction events, and population bottlenecks can all significantly influence the trajectory of evolution.\u201d This means the future is wide open, shaped by countless variables that scientists can\u2019t fully predict.<\/p>\n

Impossible to know, fun to think about<\/p>\n

\u201cThe future of life on Earth is shaped by countless variables,\u201d he points out. The path of evolution might take strange turns. Some scenarios might never pan out. Others could surprise us by unfolding in real time.<\/p>\n

\u201cBut could octopuses replace humans<\/a> \u2013 and potentially also primates<\/a> \u2013 if they were to die out? Absolutely. They could become the brains of the sea.\u201d<\/p>\n

For now, it remains an intriguing thought experiment to imagine aquatic invertebrates overseeing a planet once dominated by upright mammals.<\/p>\n

Imagining Earth without humans<\/p>\n

Coulson does not claim that this outcome is inevitable. Instead, he suggests it as a lesson in how nature might rearrange itself without us. <\/p>\n

Earth\u2019s past is packed with examples of life enduring massive upheavals. It\u2019s possible that intelligence, in some form, might spring up long after humans are gone.<\/p>\n

His book underscores evolution\u2019s capacity to produce forms and behaviors that seem strange from our perspective.<\/p>\n

This speculation encourages us to think about the delicate nature of our own hold on the planet. Our species is part of a story that began ages ago, and life will keep moving forward, one step at a time.<\/p>\n

The full interview was published in The European<\/a>.<\/p>\n

\u2014\u2013<\/p>\n

Like what you read? Subscribe to our newsletter<\/a> for engaging articles, exclusive content, and the latest updates.<\/p>\n

Check us out on EarthSnap<\/a>, a free app brought to you by Eric Ralls<\/a> and Earth.com.<\/p>\n

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