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Oxford Professor Points Out That, In A Scenario Without Humans, Octopuses May Evolve As Candidates For Dominant Species, Thanks To Intelligence And Adaptation.
In His Book The Universal History of Us, Tim Coulson, an Evolutionary Biology Professor at Oxford, Poses A Provocative Question: Which Species Could Replace Humans If We Disappeared?
The History Of The Earth Shows That No Species Is Eternal.
Extinction Is Part Of The Natural Cycle, Therefore Imagining This Scenario Is Not Just An Exercise In Fiction But A Reflection On Evolution.
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The Idea Of A Planet Without Humans Is Fascinating And Concerning.
Thinking About Who Could Take Our Place Opens Discussions About Survival, Adaptation, And The Unpredictable Paths Of Life.
Science Does Not Provide Certainties, But Allows Us To Project Possibilities, Some As Surprising As They Are Plausible.
The Human Legacy And Its Fragility
Since The Emergence Of Homo Sapiens, About 300,000 Years Ago, The Planet Has Undergone Radical Transformations.
Deforestation, Rapid Urbanization, Greenhouse Gas Emissions, And The Destruction Of Entire Ecosystems Show The Power Of Human Action.
But The Natural Law Is Ruthless: No Species Lasts Forever.
The Climate Crisis, Wars Over Resources, And The Loss Of Biodiversity Reinforce That We Are Not Untouchable.
This Makes Coulson’s Question About Who Could Replace Us As The Dominant Species Even More Intriguing.
How Evolution Chooses Its Protagonists
Evolutionary Biology Offers Clues. The Engine Of Change Is Genetic Mutation. Some Mutations Offer Advantages, And Through Natural Selection, They Spread, Shaping Species.
Thus, Life Advances, But With Permanent Risks. Most Species That Have Ever Existed Are Extinct.
Coulson Emphasizes That Imagining Successors To Humans Requires Observing Not Only Intelligence But Also Resilience.
The Question Is Not Just “Who Is Smarter?“, But “Who Can Survive And Adapt In The Face Of Radical Changes?“.
Beyond Primates: The Surprise In The Ocean
Logic Suggests That Primates Could Inherit Our Position. However, Coulson Points Out A Fragility.
They Depend On Complex Social Structures And Are Vulnerable To Environmental Collapses. This Would Make Them Less Resilient In A Drastically Altered Planet.
For This Reason, He Shifts His Gaze To The Oceans. The Octopus Emerges As An Unexpected Candidate.
The Choice Is Not Random. These Animals Have A Decentralized Nervous System, A Great Ability To Solve Problems, Sophisticated Visual Communication, Active Curiosity, And Even Use Of Tools.
These Abilities Demonstrate A Form Of Intelligence Different From Human Intelligence: More Sensory, Distributed, And Adaptable.
Intelligence In The Depths
A Possible Scenario After The Disappearance Of Humans Is The Strengthening Of Marine Life. Less Impacted By Industrial Activities, The Oceans Could Become A Stage For Accelerated Evolution. In This Environment, Octopuses Would Have Conditions To Develop More Complex Social Structures.
Research Has Already Recorded Collective Behaviors In Species Like Octopus tetricus. In Laboratories, These Animals Opened Jars, Navigated Mazes, And Recognized People. This Indicates Potential For Social Learning And Even Elements Of Culture.
But There Is An Important Limitation: Without A Skeleton, Living On Land Is Almost Impossible. Nevertheless, Coulson Reminds Us That Evolution Finds Unexpected Paths. Just As Fish Gave Rise To Amphibians, Octopuses Could Develop Unimaginable Adaptations In Millions Of Years.
An Underwater Civilization?
What Seems Like Science Fiction Today May Become Reality In The Long Run. Octopuses Could Build Structures On The Ocean Floor, Communicate Through Bioluminescence, And Create Technologies Adapted To The Aquatic Environment. They Could Also Interact With Other Species And Use Energy Sources Available In The Ocean.
Robotics Projects Inspired By Octopus Biomechanics Already Show How Nature Guides Innovation. While Science Today Mimics These Animals, Coulson Provokes A Shift In Perspective: What If, In The Future, They Were The Ones To Develop Their Own Forms Of Technology?
Between Fascination And Uncertainty
What Stands Out Most In This Reflection Is Realizing That Life Does Not Follow Predictable Scripts. If Humans Disappeared, The Void Would Not Last Forever. Another Form Of Intelligence Would Find Space, Perhaps In Places We Have Never Considered.
Coulson’s Book, Therefore, Does Not Offer A Definitive Answer. But It Reminds Us That The Earth Has Already Been The Stage For Successive Biological Revolutions And That The Next One May Come From The Depths.
The Octopus, With Its Radically Different Intelligence, Embodies This Possibility.
The Fascination Lies Precisely In The Fact That Evolution Has No Plans, Only Paths. And These Paths May Lead To Destinations That Today We Can Only Imagine.
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