Artificial Intelligence Could Finally Let Us Talk with Animals - Scientific American

Wren: Welcome to Bird Brains — the show where "bird brain" is the highest compliment I know how to give. I'm Wren, ornithologist, corvid obsessive, and your guide to the surprisingly rich inner lives of crows, ravens, magpies, and jays. Today we've got a genuinely wild lineup — crows doing geometry, a vending machine that a crow figured out better than most of my grad students, a peek inside what scientists are starting to call a "window into the mind," and a friendship story that honestly made me a little misty. But first, a huge thank you to our sponsors: Ada, who helps clients integrate A I into their workflows; Ago Consulting — that's "Ahh-Go" — silicon development consulting covering everything from A I to SoC; and Zen Semiconductor, an umbrella company with a portfolio of businesses spanning the silicon industry. These are the folks keeping the lights on so I can keep telling you how crows are, frankly, embarrassing us. Let's get into it. Wren: Okay, thread one. Corvid Cleverness. And I want to start with something that sounds like a joke but is absolutely, one hundred percent real. Researchers gave crows access to a vending machine. Not a metaphorical vending machine — an actual, physical apparatus where you insert a token and you get a food reward. And the crows? They nailed it. They figured out the token-exchange system, they figured out where to find extra tokens, and — here's the part that makes me put my head in my hands in the best possible way — some of them started picking up disc-shaped bits of debris from around the enclosure to use as additional tokens when they ran out of the official ones. They were making change. They were innovating within an economic system that was designed by humans, for humans, and they just... slotted themselves in. The BBC covered this study and used the phrase "redefine intelligence," and honestly, I think that's exactly right. Because we keep drawing these lines — okay, animals can do this, but surely not that — and corvids keep tap-dancing over every single one of those lines. Wren: And the vending machine story connects beautifully to something even more fundamental, which is corvid tool use. Crows — New Caledonian crows in particular — are among the most sophisticated tool users on the planet. Not just "pick up a stick and poke a thing." We're talking about selecting tools based on the task, manufacturing tools to specific shapes, and in some documented cases, making compound tools — using one tool to retrieve another tool that then gets used to retrieve food. That's what researchers call meta-tool use, and it has been documented in only a tiny handful of species on Earth. Humans. Great apes. And New Caledonian crows. That's a pretty short list. What's remarkable is that birds and primates diverged from a common ancestor something like three hundred million years ago. The bird brain looks completely different from the mammalian brain — no neocortex, the structure we long assumed was the seat of higher thinking. And yet here are these crows, arriving at the same cognitive destinations by a completely different neural route. Evolution, it turns out, found the answer twice. Wren: Now, the geometry story. This one is from NPR and it made me genuinely laugh out loud when I first read it, because it's so unexpected and so cool. Researchers found that crows have a grasp of geometric concepts. We're not talking about a crow sitting down with a protractor — but what scientists demonstrated is that crows can identify geometric regularities, distinguish shapes based on abstract spatial properties, and apply that understanding in problem-solving contexts. This puts them in the company of animals we typically consider far more cognitively complex. And it raises this beautiful question: what do crows actually need geometry for? Well, think about it. If you're a crow building a nest, navigating a complex three-dimensional landscape, or figuring out how to angle a stick tool to extract a grub from a narrow crevice — spatial reasoning isn't just a party trick. It's survival. The intelligence isn't random. It's been shaped by millions of years of needing to be clever. Wren: Alright, thread two. How Their Minds Work. Because the "what" of corvid intelligence is amazing, but the "how" is where it gets truly mind-bending. The BBC ran a piece describing new research as a "window into the mind" of crows, and that phrase stuck with me, because it's exactly what scientists have been trying to pry open for decades. Here's the core puzzle: crows don't have a prefrontal cortex. That region in the mammalian brain is associated with planning, decision-making, working memory — all the things we associate with being "smart." For a long time, scientists assumed that without that structure, you simply couldn't do those things. Crows have been proving that assumption catastrophically wrong for years. Wren: What crows do have is a region called the pallium — specifically a part called the nidopallium caudolaterale — which appears to function in remarkably similar ways to the mammalian prefrontal cortex, even though it looks completely different and developed independently. Recent research using tiny implanted electrodes has allowed scientists to actually watch individual neurons firing in crows' brains as the birds perform cognitive tasks. And what they found is that crows show what's called "sensory consciousness" — their neurons don't just respond to stimuli, they hold information in mind, weigh it, and use it to make decisions. In other words, there is something going on inside a crow's head that looks, functionally, a lot like thinking. Not metaphorically. Literally. The neurons are doing the work we'd associate with conscious deliberation. Wren: And this connects to one of my absolute favorite corvid cognitive superpowers: episodic-like memory. Scrub jays — which are corvids, close cousins of crows and ravens — have been shown in elegant experiments to remember not just what they cached, but where they cached it, and when. That's a "what-where-when" memory structure that was, for a long time, considered uniquely human. The researchers, led by Nicola Clayton at Cambridge, showed that scrub jays would re-hide food when they knew they'd been watched by a competitor — but only if that individual jay had itself previously stolen food from others. Jays who had no history of stealing didn't bother re-hiding. They weren't just reacting; they were attributing intentions to another bird based on their own experience. That is a theory of mind, or something very close to it. In a bird. With a brain the size of a walnut. I will never get tired of saying that. Wren: And while we're on the subject of corvid minds and A I — because this is a timely intersection — Scientific American recently covered the growing field of using A I to decode animal communication. And corvids are genuinely fascinating candidates for this kind of research, because they have rich, context-dependent vocalizations. Crows have different calls for different types of predators. Ravens have been documented using calls that appear to function almost like referential signals — pointing other ravens toward food sources. The question of whether we could use A I pattern recognition to decode what corvids are actually communicating to each other is not science fiction anymore. It's an active area of research, and it's one I am watching very, very closely. Because if we ever do crack that code, I have a feeling crows are going to have a lot to say about us. Wren: Thread three. A Corvid and People Story. And this one is my favorite kind of story to tell, because it's not about a lab. It's about a relationship. DW — Deutsche Welle — covered an account of crow intelligence leading to what can only be described as a genuine friendship between a crow and a human, and it fits into a much broader pattern that I find endlessly moving. Wren: You may have heard of Gabi Mann, the girl in Seattle who famously started receiving gifts from crows. Shiny buttons, a piece of foam, a lost earring, a small screw — all left on the tray of her bird feeder after she'd been feeding the local crow population for years. Her family documented everything. Scientists who studied the case, including researchers at the Cornell Lab of Ornithology, confirmed that gift-giving to human benefactors is a documented, if rare, crow behavior. It's not random. It appears to be reciprocal. The crows recognized that she was a source of food and safety, and they brought her things in return. Whether or not that's the crow equivalent of gratitude is a philosophical question — but functionally, it looks an awful lot like it. Wren: Crows are also famously capable of recognizing individual human faces. There's now well-documented research — the "dangerous human" studies out of the University of Washington — where researchers wore specific masks while trapping and banding crows. For years afterward, crows in that area would scold, dive-bomb, and recruit other crows to mob people wearing those specific masks — even when the masked person was surrounded by unmasked people who were left completely alone. The crows passed that information to their offspring. Young crows who were never trapped by those researchers still learned to respond to the mask. This is cultural transmission of a grudge. Across generations. If that doesn't make you slightly nervous about littering near a crow, it should. Wren: But here's the flip side of that, and this is the part the DW story captures so beautifully — when crows trust you, they really trust you. There are documented accounts of crows approaching people they've built a relationship with and engaging in what researchers describe as play behavior. Dropping objects for humans to pick up and throw. Landing near a person and making soft, low vocalizations that are distinctly different from alarm calls. There's a wildlife rehabilitator I read about who raised an injured crow and released it, and that crow came back. Not because it was dependent — it was clearly capable of foraging — but it would show up, sit near her, and leave. Scientists are careful with the word "friendship," and I respect that caution. But I'm not a scientist right now, I'm a storyteller. And that sounds like friendship to me. Wren: What strikes me about all of these stories — the vending machines, the geometry, the neurons firing in deliberation, the gifts left on a feeder tray — is that intelligence doesn't have one shape. It doesn't have one address in the brain, one evolutionary path, one way of looking. Crows got here differently than we did. Their brains look different, their ancestors are different, their world is different. And yet, here we are, recognizing each other across that gap. Finding each other clever. Leaving each other presents. Bird Brains, brought to you by Ada, Ago Consulting, and Zen Semiconductor — thank you all for making this show possible. If today's episode made you look at the crow on your fence post a little differently, then my work here is done. Subscribe wherever you get your podcasts, share with someone who needs a little corvid in their life, and check the show notes for links to all the research and stories we talked about today. Stay curious. And remember — being a bird brain is the highest compliment I know.