The Dividing Line Between Human And Animal Has Been Blurred Again As AI Reveals Startlingly Complex Whale Language

By unlocking the mysteries of how sperm whales communicate and demonstrating their impressive cognitive abilities, researchers hope to get people invested in the fate of these endangered animals.

Sperm whales are chatty.

Their language is markedly different from the deep cetacean moans associated with other whales, taking the form of Morse code-like clicks that boom through the ocean in a decibel range almost twice that of jet engines.

And while we’ve long known animals like monkeys assign specific meaning to short vocalizations varying from alarm calls to affirmations of social rank, sperm whale conversations can endure for an hour or more, with participants exchanging complex strings of clicks that vary depending on context, environment and even which pod family is speaking.

Sperm_whale_Tim_Cole_NMFS_crop
An aerial view of a sperm whale near the ocean surface. Credit: Wikimedia Commons

While artificial intelligence has been maligned over the past few years as people grapple with its rapid progress and potential for abuse, it remains the best tool we have for teasing out patterns that our human minds can’t discern, especially from large quantities of data.

With more than 9,000 recordings of sperm whales, Project CETI — Cetacean Translation Initiative, a non-profit effort to decode and translate sperm whale communication — had precisely the kind of huge data cache that AI excels at analyzing.

By feeding the recordings into specially trained machine learning algorithms, the research team was able to identify a wealth of new language patterns. While human languages are composed of quantized morphemes — prefixes, suffixes and root words — whale communication is broken down into sequences of clicks and pauses called “codas.”

Like Morse code, codas make a distinction between short clicks and long clicks. Sperm whales also vary the tempo of the clicks, which could represent inflection, “dialects” or concepts completely alien to the human mind.

“Some of what they’re doing might be totally different from our way of communicating and we’re probably never going to be able to fully grasp those differences,” Oregon State postdoctoral marine researcher Taylor Hersh told NPR.

sperm whale fluke
A sperm whale fluke visible above the surface of the ocean. Credit: Wikimedia Commons

Researchers believe the “inter-click intervals” — akin to ghost notes in music — may be as significant as the clicks themselves. Importantly, while human ears were able to identify and catalog some of the codas, the machine learning algorithms found many that human analysis missed.

That’s not surprising considering sperm whales — the loudest animals on Earth, capable of generating sounds up to 230 dB — took a much different evolutionary course and, as ocean-dwelling creatures weighing up to 90,000 pounds (40,800 kg) likely have a radically different sensorium compared to humans.

The comparisons to music go further than ghost notes.

“This study shows that coda types are not arbitrary, but rather that they form a newly discovered combinatorial coding system in which the musical concepts of rubato and ornamentation combine with two categorical, context-independent features known as rhythm and tempo, by analogy to musical terminology,” CETI’s team wrote on May 7 while unveiling the most recent study.

Sperm_whale_distribution_(Pacific_equirectangular)
Sperm whale distribution based on human sightings. Sperm whales freely travel the oceans except in cold, ice-packed environs. Credit: Wikimedia Commons

While people have used many abilities to mark the dividing line between humans and animals over the years — including the ability to use tools, experience emotions, and demonstrate self-awareness — human capacity for authentic language with syntax and context-dependent meaning was one of the stalwarts, standing the test of time as new research toppled the other dividers by showing animals do indeed use tools, experience rich emotions and have complex inner mental lives.

With this research, scientists are assembling a “sperm whale phonetic alphabet” that will make it easier to discern and catalog whale codas.

To be clear, there’s still a lot of work ahead before scientists can prove sperm whale codas are comparable to human definitions of language, but whether they strictly meet that definition may not matter. After all, it’s clear the clicks and pauses of whale codas are imbued with meaning, even if it remains elusive to us for the moment.

Indeed, “sperm whale communication has both contextual and combinatorial structure not previously observed in whale communication,” the team wrote.

Proving sperm whale codas are tantamount to human language isn’t the goal anyway. The team has two overriding priorities — decode the meanings behind the codas, and get the wider public invested in the fate of these endangered animals by showing they’re not so different from us.

“Our results show there is much more complexity than previously believed,” MIT AI lab director Daniela Rus told NPR, “and this is challenging the current state of the art or state of beliefs about the animal world.”

New York Times Ethicist: ‘My Boyfriend Said He’d Save Our Cat but Not a Stranger if Both Were Drowning’

As Charles Darwin pointed out, the difference between humans and animals is one of degree, not kind. That should factor into discussions on the value of animal life.

The headline — ‘My Boyfriend Said  He’d Save Our Cat but Not a Stranger if Both Were Drowning’ — comes from the New York Times via its Ethicist column, in which NYU philosophy professor Kwame Anthony Appiah answers questions from readers about moral rights and wrongs.

Here’s the full text of the question:

My boyfriend and I were talking about protecting human life, and he said that he doesn’t believe that human life is necessarily worth more than any other kind of life. For example, he said that if one of our cats were drowning next to a human who was a stranger to us (who was also drowning) and he could save just one, he would choose our cat. Is this morally wrong?

Appiah, in his very first sentence in response, regretfully calls pets “fictive kin” before pointing to a study by an experimental psychologist in which participants were asked whether they’d save their pets or a foreign tourist if both stepped in front of a bus at the same time. Forty percent of respondents picked the pet.

To his credit, Appiah notes the people who chose their pets don’t have “some grave defect of character,” and said the impulse to save a companion pet is “very human,” given all we share with our animals, including “affection, companionship, loyalty, all twined around a whole lot of memories.”

Buddy
“Buddy sad. Buddy needs snack.”

That said, Appiah says human life is more valuable:

“But yes, it’s very wrong. (In states with “duty to rescue” laws, it could be illegal too.) Those human strangers? They had rich emotional lives and they had plans, short-term and long-term, big and small; it’s a good guess that they were also part of other people’s plans, other people’s emotional lives.”

I’m not going to get into the question of whether human or animal life has more value. That’s a mine field, I don’t subscribe to the idea that we should work out hierarchies of life’s value as if we’re ranking favorite ice cream flavors, and it seems to me these “what if?” questions involving oncoming buses or trains don’t have much value in gauging reality.

After all, how many people do you know were forced to make life or death decisions in a millisecond, let alone decisions involving a complex moral and emotional calculus? Appiah seems to agree, while also pointing out that what people say in a questionnaire doesn’t necessarily predict what they’d do in the moment.

Life is life. It’s all valuable, and the survey doesn’t have much use outside the classroom or ethics columns.

Buddy the Handsome Cat
Buddy the Cat: Brains as well as brawn.

However, I do think it’s worth pointing out that much of what Appiah assumes is the difference between human and animal life — particularly rich emotional lives, cognition and value to others — can indeed be attributed to animals.

There’s been a seismic shift in the way most scientists view animal cognition over the past decade, and in many ways the acknowledgement of non-human sentience and potential sapience is long overdue  — there are literally thousands of studies confirming animals are conscious, sentient, and possessed of the full range of primary and secondary emotions.

Every time we set new barriers for what distinguishes human from non-human, we’re forced to change the goalposts. When behaviorism was the dominant model, the distinction was internal thought processes. In dismantling behaviorism, Noam Chomsky helped launch the cognitive revolution. Then it was  emotion and love, which crumbled with the ugly Harry Harlow studies into maternal deprivation in monkeys. Then it was capacity to reason, tool use, innovation — and every time, we’ve revised our definitions, solid in our conviction that we’re fundamentally different.

In fact, the only thing that’s held up is Charles Darwin’s original observation in 1871 that “the difference in mind between man and the higher animals, great as it is, certainly is one of degree and not of kind.”

In other words, humans aren’t some higher order of being. We are animals. Upjumped animals in some sense, but animals all the same, subject to the same diseases, physical limitations and helplessness in the face of greater forces like nature.

We may live in an age when our planet is blanketed in satellites, scientists are on fusion’s doorstep and each one of us has the entire sum of our species’ knowledge at our fingertips, but it’s shocking how quickly the veneer of civilization can collapse when people are scared, the food runs out, social order breaks down and those primal motivations — the ones we think we’ve out-evolved — drive our actions again. The early days of the COVID pandemic was just a small reminder of that.

We don’t like talking about these uncomfortable truths because they lead to more uncomfortable truths about the billions of non-human minds we share the planet with, and how we treat them.

I can’t claim to be a philosopher, although I minored in the subject over the objections of my advisor. (He should have warned me off journalism!) But when it comes to animal cognition I do have a great teacher, an 11-pound ball of fur who won’t let me forget he’s got his own wants, needs and strong emotions. Doesn’t he deserve consideration too?

This Parrot Loves Earth, Wind And Fire

The last few decades have revealed birds like crows and parrots possess astonishing intelligence. “Bird brain” might not be much of an insult after all.

Meet Kiki the cockatiel, a bird who loves Earth, Wind and Fire so much that he sings the band’s classic hit, September, regularly — whether he’s just chilling by himself, singing along to the recording or driving his human crazy by whistling the catchy hook at ungodly hours.

“Kiki, it’s seven in the morning!” she tells him in one clip, raising an admonishing finger. “Silence!”

Kiki regards her for moment as if her request is absurd, then launches right back into September.

Hey, hey, hey
Ba-dee-ya, say, do you remember?
Ba-dee-ya, dancin’ in September
Ba-dee-ya, never was a cloudy day

In another video Kiki’s human sets her phone to record and leaves the room, and Kiki busts out his favorite song again. He’s got great taste in music!

I’ve always thought parrots are a fascinating example of animal cognition and further proof that we share our planet with billions of other minds who think and feel.

Humans and birds last shared a common ancestor more than 300 million years ago. That means between them there’s been more than 600 million years of divergent evolution resulting in radically different physiology, abilities and minds.

Yet parrots can speak while non-human primates (apes and monkeys) cannot!

For decades scientists thought apes and monkeys, by virtue of their relative similarity to humans, possessed an inmate affinity for language and that the physical limits of their vocal apparatus is what keeps them from speaking.

But a 2016 study by a team from Princeton University found monkeys do possess the vocal “hardware” to speak, meaning their mouths and throats are capable of making the sounds necessary for human language. It’s the lack of associated brain circuitry that prevents them from talking.

If the ability to speak and the ability to dance/appreciate music and rhythm is uniquely human among the primate order, and birds arrived at it at a different point in their evolutionary history, that means language and appreciation for music/rhythm developed separately along two divergent evolutionary lines!

That’s incredible and has intriguing implications for the cognitive abilities of animals.

A common argument is that birds with the ability to form human speech are simply mimicking sounds and don’t understand what they’re saying. That’s a natural assumption given what we think we know about non-human capacity for understanding language, but research suggests it’s wrong.

Take a look at this video of the famous late African grey parrot, Alex:

When Dr. Irene Pepperberg asks Alex how many blue blocks are present on a tray with a random assortment of blocks, balls and triangular toys in different colors, Alex can’t give a rote answer. First he has to understand that a question is a request for information and not part of the strange human ritual called small talk. He can’t simply count or guess at the number of blocks either.

Instead, Alex has to perform two calculations. He must tally the blue objects and count the number of them that are blocks, or he’s got to count the number of blocks and figure out how many of them are blue.

If he was simply repeating information in context — like saying “Hello!” when a person walks into a room — Alex wouldn’t be able to correctly answer the questions, and Pepperberg’s research funding would have dried up. Instead, Alex became a focal point of research that persisted for decades.

There’s no indication Alex could master syntax, which has proven elusive for even the smartest animals. But the African grey, who died in 2007 at 31 years old, was curious, asking questions that were unique and unexpected of an animal. He once asked his caretakers to describe his physical appearance, and the night before he died, he told Pepperberg: “You be good. I love you. See you tomorrow.”

We’ve talked about parrots before on PITB, including Snowball the dancing cockatiel who not only appreciates music and has a great sense of rhythm, but also has an entire repertoire of unique dance moves. Then there’s my personal favorite, Ruby the African grey, who has demonstrated mastery of absolutely vile, uniquely British insults.

Sure, there may not be much research value in hearing Ruby hurl verbal abuse at her very loving human, Nick Chapman, but few things have made me laugh as hard as that extraordinarily foul-mouthed bird. She has to be seen and heard to be believed. (But if you’ve got kids in the room, stick with the wholesome Snowball. He’s got serious moves.)

Snowball the dancing parrot
Scientists credit Snowball with choreographing his own dance routines, with dozens of individual dance moves and combinations, and moves that change depending on the song he’s rocking out to.

Now if you’ll excuse me, I’m off to teach a certain feline a few Earth, Wind and Fire songs in the hope that he’ll give up on the screeching meows and use his natural falsetto for a more gentle wake-up experience.

Hey, hey, hey
Ba-dee-ya, hey there my Big Buddy
Ba-dee-ya, Little Buddy’s hungry!
Ba-dee-ya, get your lazy ass up and feeeeeed me!

Bud close up

Do You ‘Pspsps’ To Your Furry Friend? Plus: An Obit For Miles The Cat

Do you use “pspsps” to get your cat’s attention?

Apparently a lot of people use the “pspsps” thing to get their cats’ attention, and Mental Floss has a new story proposing some theories about why people use it and why cats respond.

The first and most obvious is that felines hear higher frequencies than humans, and they’re especially tuned into those frequencies because their usual prey — including rodents and birds — not only make noises in the higher ranges, they make noise us humans can’t hear, but felid ears are primed to pick up.

Mental Floss’s Ellen Gutoskey also points out that it could be “a truncation of ‘Here, pussy, pussy, pussy’—popularized in part by ‘Pussy, Pussy, Pussy,’ a 1930s song by the Light Crust Doughboys. In fact, the tempo is fast enough that it almost sounds like they’re singing ‘Pspsps.”

I think she could be onto something there unless the “pspsps” sound is universal, but truthfully I have no clue whether people in other countries, or outside the English-speaking world, use it to call their cats. I don’t and never really needed to. Bud comes when called a good 85 percent of the time, and if he doesn’t I usually assume it’s for good reason, like he’s having a nice nap or he has no current use for his servant.

Miles the cat

The Guardian’s Hannah James Parkinson writes about adopting Miles, the shelter’s most skittish cat who had been passed over time and again until she came along.

Earning Miles’ trust wasn’t easy, but Parkinson did it with time, patience and love, and eventually Miles became her little buddy and even came out of his shell enough to make friends with another neighborhood cat.

milesthecat
Credit: Hannah Jane Parkinson

Unfortunately Miles got hurt, infected and died while he was outside overnight. Parkinson doesn’t say if the little guy got hit by a car, but the description of his initial injury is consistent with it.

The indoor vs outdoor thing is a thorny issue. I saw it as a more black-and-white problem until hearing from several readers who live in places like farmland or very quiet neighborhoods where the chance of a cat getting hit is small.

I don’t begrudge anyone making what they think is the best choice for their cat(s), except maybe for Australians and New Zealanders. Seriously, guys, bring those cats in before sadistic “hunters” get them in their crosshairs or they nibble on the poisoned meat that both governments like to use to “manage” the cat population. Neither country seems overly concerned with pet cats getting caught up in their zealous extirpation campaigns, and when birders are this riled up it’s best not to take chances anyway. If your cat isn’t spending time outdoors, it can’t be blamed for killing local wildlife.

I love dogs, but…

The Daily Mail has a horrific story about a pair of unleashed rottweilers that followed a woman into her home as she was carrying groceries and mauled her two pet cats to death in front of her traumatized children.

The attack happened around noon on Aug. 30 in a small town in the UK’s Western Midlands. The dogs came bounding in and snatched one of the cats off the kitchen counter, then mauled the other. The ginger tabby died immediately, either from shock or his severe injuries, while the other lived long enough to make it to the vet, who said the little tuxedo couldn’t be saved.

The woman told the newspaper her kids are having nightmares about the attack, while the police response was underwhelming to say the least, especially because the cats weren’t the only animals attacked by the roaming rottweilers.

“We were called to Raglan Way, Chelmsley Wood (on August 30) to reports of two dogs attacking another dog. The injured dog was taken to the vets to be treated,” a police spokesman told the paper. “The owners of the two dogs were spoken to and were taken back home to be secured by the owners. We have asked neighbourhood officers to speak to the dog’s owners regarding securing the animal, and will consider any further steps that need to be taken to ensure public safety.”

The owners of the dogs “were spoken to.” Wow. Let no one say the West Midlands Police don’t have a sense of scale. Perhaps if it happens again they’ll send a stern letter.

I hope the resulting media stories, and the beginning of the attack caught on a home security camera, lead to enough pressure that the police take the incident seriously and the owners of the dogs have to face consequences. There’s nothing prohibitive about talking to them. The only way irresponsible people are going to leash their dogs, especially dogs capable of this kind of thing, is if the consequences for not doing so are sufficiently prohibitive to make them think twice.

Finally, here’s a video of a cute baby kookaburra to balance out all that horribleness:

Every Attempt To Translate Meows Has Failed. Why?

A New York Times science writer tries MeowTalk, the app that says it can tell you what your cat is saying.

New York Times science writer Emily Anthes details her experience with MeowTalk in a new story, and has more or less come to the same conclusions I did when I wrote about the app last year — it recognizes the obvious, like purring, but adds to confusion over other vocalizations.

Back in January of 2021, in MeowTalk Says Buddy Is A Very Loving Cat, I wrote about using MeowTalk to analyze the vocalizations Bud makes when he wants a door opened. After all, that should be a pretty basic task for an app that exists to translate meows: Cats ask for things, or demand them, some would say.

But instead of “Open the door!”, “I want to be near you!”, “Human, I need something!” or even “Obey me, human!”, it told me Bud was serenading me as he pawed and tapped his claws on the door: “I’m looking for love!”, “My love, come find me!”, “I love you!”, “Love me!”, “I’m in love!”

According to MeowTalk, my cat was apparently the author of that scene in Say Anything when John Cusack held up a boombox outside of Ione Skye’s bedroom window.

John Cusack and Buddy the Cat
Buddy the Director.

Anthes had a similar experience:

“At times, I found MeowTalk’s grab bag of conversational translations disturbing. At one point, Momo sounded like a college acquaintance responding to a text: ‘Just chillin’!’ In another, he became a Victorian heroine: ‘My love, I’m here!’ (This encouraged my fiancé to start addressing the cat as ‘my love,’ which was also unsettling.) One afternoon, I picked Momo up off the ground, and when she meowed, I looked at my phone, ‘Hey honey, let’s go somewhere private.’ !”

On the opposite side of the emotional spectrum, MeowTalk took Buddy’s conversation with me about a climbing spot for an argument that nearly came to blows.

“Something made me upset!” Buddy was saying, per MeowTalk. “I’m angry! Give me time to calm down! I am very upset! I am going to fight! It’s on now! Bring it!”

In reality the little dude wanted to jump on the TV stand. Because he’s a serial swiper who loves his gravity experiments, the TV stand is one of like three places he knows he shouldn’t go, which is exactly why he wants to go there. He’s got free rein literally everywhere else.

If MeowTalk had translated “But I really want to!” or something more vague, like “Come on!” or “Please?”, that would be a good indication it’s working as intended. The app should be able to distinguish between pleading, or even arguing, and the kind of freaked-out, hair-on-edge, arched-back kind of vocalizations a cat makes when it’s ready to throw down.

buddytranslations
Accurate translations of Buddy’s meows.

Still, I was optimistic. Here’s what I wrote about MeowTalk last January:

“In some respects it reminds me of Waze, the irreplaceable map and real-time route app famous for saving time and eliminating frustration. I was one of the first to download the app when it launched and found it useless, but when I tried it again a few months later, it steered me past traffic jams and got me to my destination with no fuss.

What was the difference? Few people were using it in those first few days, but as the user base expanded, so did its usefulness.

Like Waze, MeowTalk’s value is in its users, and the data it collects from us. The more cats it hears, the better it’ll become at translating them. If enough of us give it an honest shot, it just may turn out to be the feline equivalent of a universal translator.”

There are also indications we may be looking at things — or hearing them — the “wrong” way. Anthes spoke to Susanne Schötz, a phonetician at Lund University in Sweden, who pointed out the inflection of a feline vocalization carries nuances. In other words, it’s not just the particular sound a cat makes, it’s the way that sound varies tonally.

“They tend to use different kinds of melodies in their meows when they’re trying to point to different things,” said Schötz, who is co-author of an upcoming study on cat vocalizations.

After a few months in which I forgot about MeowTalk, I was dismayed to open the app to find ads wedged between translation attempts, and prompts that asked me to buy the full version to enable MeowTalk to translate certain things.

The developers need to generate revenue, so I don’t begrudge them that. But I think it’s counterproductive to put features behind paywalls when an application like this depends so heavily on people using it and feeding it data.

To use the Waze analogy again, would the app have become popular if it remained the way it was in those first few days after it launched? At the time, I was lucky to see indications that more than a handful of people were using it, even in the New York City area. The app told me nothing useful about real-time traffic conditions.

These days it’s astounding how much real-time traffic information the app receives and processes, routing drivers handily around traffic jams, construction sites and other conditions that might add minutes or even hours to some trips. You can be sure that when you hear a chime and Waze wants to redirect you, other Waze users are transmitting data about a crash or other traffic impediment in your path.

Bud
“I’m thinking deep thoughts about turkey.”

MeowTalk needs more data to be successful, especially since — unlike Waze — it depends on data-hungry machine learning algorithms to parse the sounds it records. Like people, machine learning algorithms have to “practice” to get better, and for a machine, “practice” means hearing hundreds of thousands or millions of meows, chirps, trills, yowls, hisses and purrs from as many cats as possible.

That’s why I’m still optimistic. Machine learning has produced algorithms that can identify human faces and even invent them. It’s produced software that can write prose, navigate roads, translate the text of dead languages and even rule out theories about enduring mysteries like the Voynich Manuscript.

In each of those cases there were innovators, but raw data was at the heart of what they accomplished. If MeowTalk or another company can find a way to feed its algorithms enough data, we may yet figure our furry little friends out — or at least know what they want for dinner.