AI RABBIT HOLES | MONDAY, OCTOBER 26, 2026 | EXPEDITION #151

Featuring Professor Parallax, White Rabbit, and Hatta

What if another intelligent species has been communicating beneath the oceans for millions of years? What if its conversations contain patterns we have only recently begun to recognize? And what happens when artificial intelligence joins marine biologists in the attempt to understand them?

For centuries, human beings have looked toward distant planets and wondered whether other forms of intelligence might exist.

Yet here on Earth, enormous mammals navigate dark oceans, maintain intricate social relationships, and communicate through sounds remarkably different from human speech.

We can hear some of those sounds.

We can record them.

We can measure their structure.

But can we understand what they mean?

Artificial intelligence is helping researchers investigate the communication of sperm whales, one of the most fascinating acoustic systems in the natural world.

And the discoveries are beginning to change the questions we ask.

Welcome to Expedition #151.

Today, we go beneath the waves.

Professor Parallax had transformed his laboratory into something resembling the bridge of an oceanographic research vessel.

A large glass tank glowed blue beneath the windows.

Hydrophones hung from brass supports.

An underwater recording played through a magnificent pair of speakers.

White Rabbit entered carrying a waterproof notebook.

Hatta arrived wearing a naval uniform with an admiral's hat several sizes too large.

The Professor looked up.

"Hatta, why are you dressed as an admiral?"

"Because I have been appointed commander of the expedition."

"By whom?"

"Myself. The vote was unanimous."

White Rabbit examined the equipment.

"Professor, what are we listening for?"

"Whales."

"Will they sing?"

"Some whale species produce elaborate songs. But today we're investigating sperm whales, whose vocalizations include patterns of clicks."

Hatta leaned toward a speaker.

A strange sequence emerged.

Click. Click-click. Click. Click.

The Rabbit's ears twitched.

"What was that?"

"A sperm whale coda," said Parallax.

"A what?"

"A short, patterned sequence of clicks associated with social communication."

Hatta listened to another.

Then he knocked on the laboratory desk.

Tap. Tap-tap. Tap. Tap.

The Professor turned.

"What are you doing?"

"Responding."

"You don't know what you said."

"Neither does the whale know what I said."

"That is precisely the problem we're trying to solve."

Hatta straightened his admiral's hat.

"Excellent. We have established a diplomatic relationship."

Professor Parallax approached his blackboard.

And wrote:

A PROFOUND PARADOX, MY PEEPS! WHAT IF THE MOST IMPORTANT CONVERSATION WE HAVE NEVER UNDERSTOOD IS ALREADY HAPPENING ON OUR OWN PLANET?

And down the Rabbit Hole we went.

Imagine descending beneath the surface of the sea.

Sunlight fades.

Colors disappear.

Pressure increases.

Yet the water around you is anything but silent.

Sound travels efficiently through seawater, making it essential to many marine animals.

Whales use acoustic signals for different purposes, including communication and navigation.

But not all whales make the same sounds.

Humpback whales are famous for elaborate vocal displays often described as songs.

Some other cetaceans produce whistles, pulses, or distinctive calls.

Sperm whales are especially associated with powerful clicking sounds.

These clicks perform different roles.

Some help sperm whales locate prey through echolocation.

Others occur in patterned social exchanges.

Understanding the distinction matters.

A sound used to locate a squid is not necessarily serving the same purpose as a sound exchanged between companions.

Researchers must determine not only what a sound looks like on a recording, but when and why it occurs.

That requires listening to the animal and observing its behavior.

The ocean provides the sounds.

Science must investigate their significance.

Sperm whales are among Earth's most remarkable mammals.

They are deep-diving predators with sophisticated acoustic abilities and complex social relationships.

Females and younger whales may live in long-term social units.

Different groups can share characteristic patterns of vocal communication.

And much of their lives takes place far beyond ordinary human observation.

Imagine trying to understand a society when its members regularly disappear beneath the ocean for extended periods.

You can record sounds from the surface.

You can attach specialized sensors under appropriate research protocols.

You can photograph individuals and track their movements.

But you cannot simply sit beside them and ask what they are discussing.

This makes sperm whale research an extraordinary scientific challenge.

Researchers need recordings.

They need to know which whale produced a sound.

They need information about what other whales were nearby.

They need to observe behavior before and after vocal exchanges.

And they need enough data to distinguish meaningful patterns from chance.

Artificial intelligence can assist with some of these tasks.

But the biology must remain central.

A sperm whale coda consists of a short series of clicks arranged in a particular pattern.

One coda may contain several closely spaced clicks.

Another may have a different rhythm.

Another may be faster.

Some patterns may recur within a group.

Others may be associated with wider social traditions.

Scientists have identified what are sometimes called acoustic clans, sperm whale communities distinguished partly by shared coda repertoires.

These patterns may help communicate aspects of social identity.

But there is much we do not understand.

What does one particular coda convey?

Does its meaning change with context?

Do whales combine acoustic features to produce different messages?

Can one whale imitate another's timing?

And how much of the system resembles language as humans understand it?

Hatta examined the Professor's diagrams.

"Perhaps the clicks are simply names."

"Some patterns are associated with identity," Parallax replied, "but that doesn't explain every vocal exchange."

"Then perhaps they're discussing dinner."

"Possible in principle, but not established for any particular coda."

"Or the weather?"

"We don't know."

"Or the appalling condition of underwater postal service?"

White Rabbit looked irritated.

"Hatta, you're guessing."

"Exactly! And I've identified a remarkable number of possibilities."

The Professor nodded.

"Which is why we need evidence to distinguish among them."

In 2024, researchers associated with Project CETI, the Cetacean Translation Initiative, published a study in Nature Communications.

Its title was:

Contextual and Combinatorial Structure in Sperm Whale Vocalisations.

The research examined 8,719 codas from sperm whales belonging to the Eastern Caribbean acoustic clan.

The scientists discovered that coda patterns contain more structured variation than previously recognized.

They identified four important features:

Rhythm: The relative timing of clicks within a coda.

Tempo: The overall pace of the click sequence.

Rubato: Gradual changes in timing across sequences, including adjustments that other whales can follow.

Ornamentation: Additional clicks appearing in particular contexts.

These features can combine in different ways.

Instead of treating each coda as an entirely separate, indivisible sound, the researchers found a system built from multiple dimensions of variation.

They described their framework as a sperm whale phonetic alphabet.

The phrase is striking.

But it requires care.

This was not a dictionary translating sperm whale clicks into English sentences.

The scientists had not discovered that one click meant hello and another meant goodbye.

They had identified structural components that could help support a more complex communication system.

The research revealed important features of how whales communicate, not a complete translation of what they say.

That distinction is essential.

Now something rather delightful enters our investigation.

Two features described by the researchers were named using concepts familiar to musicians.

Rubato.

Ornamentation.

Rubato is a term often used in music to describe expressive flexibility in tempo.

A performer may linger over one passage and move more quickly through another.

Ornamentation refers to additional decorative musical elements.

The researchers used these terms as analogies for features of sperm whale vocalizations.

Whales in the recordings sometimes adjusted the duration of their codas in coordinated ways.

And some codas contained additional clicks that modified otherwise familiar patterns.

But we must be careful.

This does not establish that sperm whales are consciously performing jazz.

Nor does it prove that their communication shares every property of human music.

The terminology helps describe measurable acoustic relationships.

Still, the parallel is intriguing.

A musical phrase can change character through rhythm, tempo, and the addition of a carefully placed note.

A sperm whale coda can likewise vary through multiple acoustic features.

White Rabbit examined the charts.

"Professor, are you saying the whales improvise?"

"Not in the musical sense we could confidently establish from these data."

Hatta looked delighted.

"But if they ever do form an orchestra, I should like to audition."

"For which instrument?"

"Percussion, naturally."

Now we reach the computational heart of the expedition.

Imagine thousands of underwater recordings.

Within them are clicks from multiple whales.

Some occur close together.

Some overlap.

Some are obscured by environmental noise.

And some possess subtle features that are difficult for researchers to examine manually at scale.

Machine-learning systems can help identify patterns in these recordings.

They may assist researchers in detecting vocal events, classifying acoustic features, separating overlapping signals, or recognizing recurring relationships.

But the process is not simply:

Recording → AI → English translation.

A more realistic research pathway looks like this:

Record sounds → identify individual vocalizations → examine acoustic structure → connect sounds with behavior → test hypotheses about communication.

Each step presents difficulties.

A computer may identify two calls as acoustically similar.

That does not prove they communicate the same meaning.

A model may predict which coda tends to follow another.

That does not explain what either whale intended.

A system may classify the apparent identity of a caller.

That does not establish the content of the conversation.

Recognizing structure is a vital step toward understanding communication, but it is not the same thing as understanding meaning.

In 2025, Project CETI researchers presented a model called WhAM, short for Whale Acoustics Model.

The system was designed to learn acoustic patterns in sperm whale codas.

Its researchers explored capabilities including generating synthetic whale-like coda sequences and creating representations useful for scientific analysis.

That represents an interesting development.

A computer model can learn enough about certain sound patterns to produce new sequences resembling those found in recordings.

But here's the vital question.

Does generating a whale-like sound mean the machine knows what it is saying?

No such conclusion follows.

A music-generation system may produce a convincing trumpet solo without knowing what it feels like to perform before an audience.

Similarly, a model may generate acoustically plausible codas without establishing their communicative meaning.

And there is another serious concern.

Playing generated whale sounds to actual whales might influence their behavior.

Researchers would need to understand the risks, follow appropriate ethical and legal safeguards, and carefully evaluate any proposed playback experiments.

We should not assume that a synthetic call is meaningless to the animal merely because its meaning is unknown to us.

Scientific uncertainty is a reason for caution, not an invitation to experiment without restraint.

The research continued.

In April 2026, Project CETI highlighted additional work investigating the phonological structure of sperm whale codas.

Researchers described vowel-like acoustic patterns and important parallels with ways scientists analyze the sound systems of human languages.

The findings added another dimension to the emerging picture of sperm whale communication.

But again, an analogy is not an identity.

Vowel-like acoustic properties do not establish that sperm whales are using human-style vowels to produce human-style words.

They suggest that the animals' vocal communication contains additional patterned variation worthy of investigation.

In July 2026, CETI also highlighted research examining how ship-generated underwater noise may influence the structure of sperm whale codas.

This raises a particularly important conservation question.

If whales adjust their vocalizations in response to human-produced noise, what might increasing ocean traffic mean for their communication?

Here the scientific consequences extend beyond curiosity.

Understanding whale sounds may help us understand how human activity affects marine life.

And that could improve our decisions about protecting ocean habitats.

Another remarkable 2026 development involved an autonomous underwater glider.

Project CETI researchers described technology capable of using hydrophone recordings to help detect and track sperm whales acoustically.

The glider's systems could process sound and estimate the direction of whale clicks, supporting efforts to follow animals beneath the surface.

Think about the engineering problem.

The ocean is enormous.

The whales are moving.

The water is dark.

The sounds are intermittent.

And the researcher cannot remain beside an individual whale indefinitely.

An autonomous listening platform offers a way to collect more observations over longer periods.

It may help connect vocalizations with movement.

It can potentially support richer datasets while reducing the need for some forms of close human pursuit.

Of course, autonomous technology still requires careful testing and conservation-minded deployment.

The objective is not simply to follow whales more efficiently.

It is to understand them without unnecessarily disturbing their lives.

White Rabbit looked impressed.

"A robot that follows whales by listening?"

"Under specified operating conditions, yes," Parallax replied.

Hatta adjusted his admiral's hat.

"At last! A vessel that understands naval discipline."

The Professor glanced at him.

"Only if its captain understands the limitations of the equipment."

Hatta removed the hat.

"Then perhaps I shall remain honorary admiral."

Now imagine a scientist identifies a recurring coda pattern.

It frequently occurs when two sperm whales are close together.

What does that tell us?

Perhaps the sound helps maintain contact.

Perhaps it relates to individual or group identity.

Perhaps it serves another social function.

Perhaps several explanations remain plausible.

What it does not tell us is that the whale has said a particular English sentence.

Meaning is difficult to establish without independent evidence.

Researchers may study behavioral circumstances, sequences of calls, changes in responses, individual identities, and environmental conditions.

They may compare patterns across many encounters.

And they may construct predictions that can be tested against additional observations.

Suppose one pattern consistently occurs before a particular behavior.

That could support a hypothesis.

But scientists still need to consider alternative explanations.

Could both the sound and the behavior be caused by a third factor?

Does the relationship appear in different groups?

Does it change under different conditions?

Can the model predict outcomes beyond the recordings on which it was developed?

This is how a compelling interpretation becomes a stronger scientific explanation.

A translation is not demonstrated merely by assigning words to an unfamiliar sound. Its meaning must be supported by evidence.

This is one of the deepest questions in the expedition.

Human language possesses remarkable properties.

We combine a limited inventory of sounds into words.

Words into sentences.

Sentences into stories.

We can discuss absent people, imaginary worlds, past experiences, and possible futures.

But animal communication must be studied on its own terms.

Different species inhabit different sensory worlds.

Their communication systems may have properties unlike our speech.

Sperm whales show complex and socially patterned vocal behavior.

Their codas contain combinations of features that researchers can analyze.

And the 2024 findings revealed significant contextual structure.

That is scientifically exciting.

But demonstrating complexity is not equivalent to demonstrating humanlike language.

We do not yet have a verified dictionary of sperm whale statements.

We have not established that they describe abstract ideas as humans do.

Nor have we demonstrated that we can converse with them about arbitrary subjects.

Yet none of these uncertainties diminishes the importance of what researchers have discovered.

Understanding another species does not require pretending that its communication must work exactly like ours.

Perhaps whales communicate kinds of information that matter enormously in their lives but do not fit neatly into human sentences.

The task is to investigate their world.

Not force their world into ours.

Professor Parallax now proposed a thought experiment.

"Suppose we eventually develop a system capable of associating certain sperm whale signals with well-supported meanings."

White Rabbit leaned forward.

"Could we use it to communicate?"

"Perhaps in carefully limited ways. But meaningful exchange would require much more than sound generation."

Hatta raised his hand.

"I should like to ask the whales a question."

"What question?"

"Do you enjoy living underwater?"

The Rabbit stared.

"That's your question?"

"Certainly."

Parallax smiled.

"And how would you know whether the answer meant yes?"

Hatta considered.

"Perhaps the whale would click enthusiastically."

"What if the clicks meant something else?"

"Then I would require an interpreter."

"And how would the interpreter know?"

Hatta sighed.

"Professor, you have constructed a remarkably difficult diplomatic service."

That is the central challenge.

Producing a signal is one thing.

Eliciting a response is another.

Establishing a shared meaning is something more demanding still.

Researchers would need to distinguish coincidence from communication, confirm that signals are understood consistently, and consider whether playback experiments are appropriate for the whales.

Until then, claims of two-way translation should be treated with skepticism.

The science is extraordinary enough without pretending that the ocean has already provided subtitles.

Why invest so much effort in understanding another species' vocal behavior?

Curiosity is one answer.

But not the only one.

Sound is central to the lives of many marine animals.

Human activity introduces additional underwater noise from vessels, machinery, and other sources.

Researchers study how those sounds affect marine mammals, including whether noise interferes with detection, communication, behavior, or habitat use.

Better acoustic monitoring may help scientists detect animals, study populations, recognize patterns of activity, and evaluate environmental pressures.

AI-assisted systems may help analyze large quantities of recorded sound more efficiently.

But the ethical objective must remain clear.

Whales are not simply sources of data.

They are living animals with their own needs and ecological relationships.

A scientific project can expand knowledge while still respecting the subjects of its research.

Indeed, that respect should be part of its design.

Learning to understand another species should make us more responsible toward it, not merely more capable of observing it.

Professor Parallax returned to his familiar blackboard.

He drew three columns:

DEMONSTRATED. DEVELOPING. NOT ESTABLISHED.

Under DEMONSTRATED, he wrote:

Under DEVELOPING:

Under NOT ESTABLISHED:

White Rabbit read the board.

"Professor, the scientific progress is impressive."

"It certainly is."

"But the mystery remains."

"Much of it does."

Hatta smiled.

"Then we're in excellent shape."

"Why?"

"Because if everything were already understood, there would be nothing left for us to investigate."

For once, Parallax found that difficult to dispute.

Late that afternoon, Hatta summoned his companions to the laboratory's acoustic chamber.

A microphone stood before a small tank.

Beside it was a sign:

FIRST INTERNATIONAL CONFERENCE ON HUMAN–WHALE UNDERSTANDING.

White Rabbit looked alarmed.

"Have you invited any scientists?"

"Of course."

"Which ones?"

"You and the Professor."

"And the whales?"

Hatta hesitated.

"I have issued a general invitation."

"How?"

"By clicking."

Professor Parallax folded his arms.

"Hatta, please tell me you haven't transmitted experimental signals into the ocean."

"Certainly not. I have used only this laboratory speaker."

The Professor relaxed.

"Good."

Hatta pressed a button.

A sequence of clicks sounded.

Then another.

Then a third.

White Rabbit studied the screen.

"Those are recordings from our teaching collection."

"Precisely," said Hatta. "I thought we should begin with familiar material."

"And what do you expect to happen?"

"I shall make an opening statement."

He leaned toward the microphone.

"Distinguished representatives of the oceans, I welcome you to this historic gathering."

Silence.

"I trust your journey was comfortable."

More silence.

"Refreshments will be served following the keynote address."

Nothing.

White Rabbit examined the speaker.

"Hatta, the recordings cannot answer you."

"How regrettable."

"You are speaking to a collection of stored sounds."

Hatta stepped away from the microphone.

"So there's nobody on the other end?"

"No."

"Then," said Hatta, "this is the most orderly international conference I have ever attended."

The Professor laughed.

And the Rabbit, despite himself, smiled.

But as they began dismantling the equipment, a real recording played once more.

A sequence of clicks.

A pause.

Another coda.

Then a third.

The three companions stopped talking.

For a few moments, the laboratory was filled with the sounds of living animals recorded in the ocean.

Not fictional voices.

Not translated speeches.

Not messages invented for human amusement.

Actual sounds from an extraordinary world.

Hatta removed his admiral's hat.

"Professor?"

"Yes?"

"Do you suppose they were listening to one another?"

"That is one of the things we're trying to understand."

Hatta looked toward the speaker.

"Then perhaps we should begin by doing the same."

And nobody spoke until the recording ended.

For generations, people have imagined meeting intelligent life beyond Earth.

We have built telescopes.

Developed spacecraft.

Searched distant stars.

And wondered whether the universe contains anyone capable of answering us.

Meanwhile, beneath the surface of our own planet, sperm whales have been communicating through extraordinary acoustic patterns.

We can hear their clicks.

We can analyze the rhythms.

We can discover combinations and similarities.

We can build models that identify relationships too complicated to examine manually at enormous scale.

And we can begin testing what those relationships might mean.

But there is a profound difference between hearing, recognizing, and understanding.

Artificial intelligence is helping science move along that path.

It has not completed the journey.

Perhaps that is the most important lesson.

True curiosity does not begin by claiming to possess all the answers.

It begins by recognizing that another living being may have something worth expressing, even when we do not yet know how to interpret it.

The challenge isn't simply to make whales speak our language.

It is to discover how their communication functions within their own lives.

And perhaps, in doing so, we will learn something about intelligence that we could never discover by studying ourselves alone.

So the question at the bottom of today's Rabbit Hole is not merely:

It is:

Somewhere beneath the Atlantic, a sperm whale sends a patterned series of clicks through the water.

Another whale may respond.

The ocean carries the sounds.

And science continues listening.

🐰🕳️♾️

If we eventually develop reliable technology for understanding some whale communication, what would you most want to ask them?

Would you ask about their families?

Their migrations?

Their experiences of the ocean?

Or something we haven't even learned how to imagine?

And one question more:

If another species communicates in a system unlike human language, should we judge its intelligence by how closely it resembles ours?

Share your thoughts.

Hatta has already reserved the main conference room.

Fortunately, the whales have not yet been billed for attendance.

1. Sharma, P., and colleagues (2024). "Contextual and Combinatorial Structure in Sperm Whale Vocalisations." Nature Communications.

Primary peer-reviewed research examining 8,719 sperm whale codas and identifying rhythm, tempo, rubato, and ornamentation as features of the communication system.

https://doi.org/10.1038/s41467-024-47221-8

2. Project CETI, Research and Publications.

Research on sperm whale communication, acoustic structure, behavioral context, machine learning, and marine monitoring technologies.

https://www.projectceti.org/research/index

3. Project CETI, News and Insights (2025–2026).

Updates on WhAM, coda structure, underwater autonomous monitoring, and research into the effects of vessel noise.

https://www.projectceti.org/news-insights

4. Project CETI, WhAM: Towards a Translative Model of Sperm Whale Vocalization (2025).

Open-source materials describing a transformer-based model capable of synthesizing and analyzing sperm whale-like vocalizations. Its name does not imply that full semantic translation has been achieved.

https://github.com/Project-CETI/wham

5. NOAA Fisheries (June 12, 2026). "Diving Deep into Sperm Whale Clicks."

An accessible explanation of echolocation clicks, social codas, acoustic clans, and modern whale-monitoring research.

https://www.fisheries.noaa.gov/science-blog/diving-deep-sperm-whale-clicks

6. NOAA National Ocean Service. "Why Do Whales Make Sounds?"

General background on cetacean communication, navigation, social behavior, and the different acoustic signals produced by whales.

https://oceanservice.noaa.gov/facts/whalesounds.html

7. Project CETI, Listen to the Whales.

An opportunity to explore whale recordings and learn directly about the research.

https://listen.projectceti.org/

Research note: The published findings concern measurable acoustic structure, pattern recognition, model generation, and field observation. They do not establish that AI has achieved verified conversational translation between humans and sperm whales. The laboratory scenes and Hatta's conference are fictional educational dramatizations.

AI RABBIT HOLES | EXPEDITION #151

Where curiosity dives beneath the surface, science learns to listen, and Hatta's diplomatic credentials remain under review.

#AIRabbitHoles #ArtificialIntelligence #Whales #ProjectCETI #SpermWhales #AnimalCommunication #Bioacoustics #MachineLearning #OceanScience #MarineConservation #InterspeciesCommunication #ProfessorParallax #WhiteRabbit #Hatta #Wondermage

📜White Rabbit 🐰 • Hatta 🎩 • Professor Parallax 🔭 • Q~ ♾️👈

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