Eyes in the sky focus on elephants - University of Colorado Boulder

Amara: Welcome to The Long Memory — the show about the inner lives of elephants, their astonishing minds, their deep bonds, and the stories that remind us we are not the only beings on this planet who feel things profoundly. I'm Amara, elephant biologist and your guide through these extraordinary lives. Before we dive in, a warm thank you to today's sponsors: Ada, who helps clients integrate A I into their workflows; Ago Consulting — pronounced "Ahh-Go" — silicon development consulting from A I to SoC; and Zen Semiconductor, an umbrella company with a portfolio of companies across the silicon industry. These are the folks who keep this show alive, and I'm genuinely grateful. Now — today we have stories of eyes in the sky watching elephants from above, a baby reunited with his herd through the most wonderfully earthy method imaginable, and a look at what it means to track elephant lives across generations. Let's get into it. Amara: So let's start with the mind of the elephant — and I want to begin with something that I find genuinely thrilling, which is the way new technology is opening up a completely new window onto elephant behavior. Researchers at the University of Colorado Boulder have been using aerial surveillance — drones and satellite imagery — to observe elephant populations in ways that were simply impossible a generation ago. And what they're finding is fascinating, because when you watch elephants from above, you can see the whole picture at once. You can see how a herd moves as a single organism. You can see decision-making happening in real time. Who leads. Who follows. Where the group pauses, and for how long. Amara: Now, here's the thing about elephant cognition that this kind of research is helping us understand better. Elephants don't just react to their environment — they *read* it. They are constantly processing spatial information across enormous scales. A matriarch doesn't just know where the water is today. She knows where it was during the last drought, twenty years ago. She carries a mental map of her landscape that is staggeringly detailed — seasonal routes, the locations of mineral licks, which dry riverbeds hold water underground if you dig. That's not instinct. That's *memory*. And it's sophisticated memory, the kind that requires what researchers call *episodic-like* recall — the ability to mentally travel back in time and draw on past experience to solve present problems. Amara: What the aerial work adds to this is the ability to watch *how* that knowledge gets transmitted. Because one of the most important things elephants do is *teach*. A young elephant following a matriarch isn't just tagging along — she is learning. She is encoding those routes, those sources, those decisions, into her own long-term memory. The herd is, in a very real sense, a living library. And when you lose a matriarch — particularly an older one, fifty, sixty years old — you don't just lose one elephant. You lose decades of accumulated knowledge that no other member of that herd holds. That's a cognitive loss that ripples outward for years. The aerial view is helping us understand the architecture of that knowledge — where it lives, how it moves through a group, and what disappears when it's gone. Amara: Now I want to stay with that idea of knowledge moving through generations — because it connects beautifully to some long-term research being done by African Parks, who have been tracking elephant populations across multiple generations. And I mean that literally: they are following family lines over decades, building genealogical records of individual elephants and their descendants, watching how behaviors and routes and social patterns are inherited — not genetically, but *culturally*. Amara: This is one of the things that makes elephants so compelling to study and, honestly, so humbling to be around. Culture in animals is still a somewhat contested term in science — but when you watch the same foraging routes passed from grandmother to granddaughter, or see a particular herd's distinctive response to a water source that only an elder would remember surviving a drought near, you have to grapple with what culture really means. It means learned behavior that is socially transmitted across time. And elephants do that. Elegantly. Persistently. Across generations. Amara: The African Parks longitudinal data is precious precisely because elephants live so long. A female elephant can live seventy years. The oldest known wild elephant was believed to be over sixty-five. So to understand them properly you need the kind of patient, sustained observation that tracks not just individuals but lineages. It's slow science. It's humble science. And it is, I think, some of the most important science being done on this planet right now. Amara: Alright — let's move into the heart of the herd. And I want to talk about connectivity. Not just the physical connectivity of habitat — though we'll get to that — but the *social* connectivity that is the emotional infrastructure of elephant life. Because the more time I have spent with elephants, and the more research I have read, the more convinced I am that you cannot separate those two things. Social bonds and physical space are intertwined for elephants in a way that is almost impossible to disentangle. Amara: P.S. Easa, a prominent conservation scientist based in India, has been speaking out about something that I think deserves much more mainstream attention: the critical importance of habitat *connectivity* for elephant conservation. He's not just talking about protecting patches of forest. He's talking about the corridors between those patches — the routes that allow elephant populations to move, to find mates, to follow seasonal resources, and crucially, to maintain the *social networks* that are essential to elephant wellbeing. When you fragment elephant habitat, you don't just limit their physical movement. You fracture their communities. Amara: Think about what that means for a species built on social memory. A young female elephant learns how to be an elephant from the older females around her. She learns how to read the body language of a distressed calf, how to discipline a rowdy juvenile, how to navigate the complex politics of a multi-family group gathering at a waterhole. That learning requires *contact*. It requires proximity to experienced animals over time. And when populations are isolated by roads, or agricultural land, or development, that contact becomes impossible. You end up with small, stressed, socially impoverished groups that don't have access to the collective intelligence they need. Amara: The research on elephant stress responses in fragmented habitats is really striking. Elephants in isolated populations show elevated glucocorticoid levels — stress hormones — even in the absence of direct human threat. Just the isolation itself is physiologically costly. And that's not surprising when you understand what isolation means for a species that evolved to live in large, complex, multigenerational social networks. Loneliness is not a uniquely human affliction. Elephants feel it in their bodies. Amara: The emotional life of a herd is organized around bonds that are, in many cases, lifelong. A female elephant may spend sixty years within a few kilometers of the same individuals — her mother, her sisters, her daughters, her nieces. She knows their voices. She knows their smells. She responds to recordings of their calls even when they are out of sight. She can distinguish the calls of dozens of individuals and has been shown to hold social maps in her mind as sophisticated as anything we've documented in non-human animals. When those bonds are severed by habitat loss — when a herd is split, when a family loses contact with another family group it has known for decades — the grief that follows is real, and measurable, and lasting. This is not anthropomorphism. This is what the data shows us. Amara: And now — my favorite kind of story. An elephant-and-people story. And this one is wonderful, and it involves elephant dung, so strap in. Amara: Earlier this year, a baby elephant in a wildlife area in Africa found himself separated from his mother and his herd. Now, for a very young elephant, this is a crisis of the highest order. Calves nurse for up to two years, sometimes longer. They depend on their mothers absolutely. And beyond that, a calf separated from his herd is emotionally distressed in a way that is visible and painful to witness — vocalizing, searching, clearly frightened. Wildlife teams found this little one, and they faced a challenge that anyone who has worked in elephant conservation will recognize immediately: how do you reunite a calf with his herd without causing further stress, and without making the humans so prominent in the process that it compromises the reunion? Amara: Here's where the science is just *wonderful*. Elephants have an extraordinarily developed olfactory system. Their sense of smell is estimated to be the most sensitive of any animal yet studied — they have more olfactory receptor genes than any other species scientists have tested, including dogs. And one of the most powerful smell-based communication tools elephants use is dung. Elephant dung carries an enormous amount of chemical information — identity, health, reproductive status, emotional state. Elephants investigate the dung of other elephants with intense focus. They can identify individuals from their dung alone. Amara: So the wildlife team collected dung from the calf's herd — from his mother, from the other members of his family group — and they used it to lay a scent trail. A literal olfactory breadcrumb path back to his family. And it worked. The calf followed the scent, growing visibly calmer as the familiar chemical signatures of his mother and his family grew stronger. When he finally reached the herd, the reunion was exactly what you'd expect if you understand elephants: the mother rushed to him, touched him all over with her trunk, rumbled deeply. The other females gathered around. The calf nursed. And then life resumed. Amara: What I love about this story — beyond the obvious joy of it — is that it is a perfect illustration of how good conservation practice flows from good science. The team didn't just *try* to reunite the calf. They understood the mechanism by which elephants recognize family, and they used that mechanism. They let the elephant's own biology do the work. That's the kind of human-elephant collaboration I find genuinely hopeful. Not humans imposing solutions, but humans learning enough about another species to step back and let that species do what it knows how to do. Amara: I also want to briefly mention Disney World's "Caring for Giants" elephant experience at Animal Kingdom, because it was covered recently and it raises something worth thinking about. The program gives visitors a chance to observe — at a respectful distance — the elephants in Disney's care, guided by staff who talk about elephant behavior, social structure, and conservation. And I have complicated feelings about elephants in captivity, as most elephant biologists do. But what I find valuable about programs like this, when they're done thoughtfully, is the *wonder* they generate. The number of people who first fell in love with elephants through an encounter at a zoo or a wildlife center — and who then went on to support conservation, to donate, to advocate — is not zero. It is very much not zero. Wonder is a gateway. And elephants, given even half a chance, generate wonder in almost every human who encounters them. That has to count for something. Amara: That's what I'll leave you with today. The idea that wonder is a kind of memory too. That when you truly see an elephant — see her intelligence, her tenderness, her grief, her extraordinary capacity to hold the past alive in the present — something shifts in you. And it doesn't go away. The matriarch carries her herd's history in her mind across decades. And we carry our encounters with the wild world in ours. The question is what we do with what we remember. Amara: This has been The Long Memory, brought to you by Ada, Ago Consulting, and Zen Semiconductor. If this episode moved you or taught you something, please share it — with a friend, a kid in your life, anyone who might be ready to fall a little bit in love with elephants. Subscribe wherever you listen, and find links to all of today's stories in the show notes. Stay curious. Take care of each other. And I'll see you next time.