The Science of Orca Grief And What We Don't Know

In the summer of 2018, a pod of orcas near Seattle gave researchers something they'd never fully documented before. A mother who would not accept that her calf had died. The calf, a female, survived less than an hour after birth. Instead of leaving the body, the mother kept it at the surface, using her head and rostrum to hold it above water, diving to retrieve it each time it sank. She kept doing this, not for an hour or a day, for 17 days. Across roughly a thousand miles of Pacific coastline. Scientists know her as J-35. Most people know her by her given name, Tahlequah. What she did that summer raised a question researchers had mostly avoided asking out loud. Do orcas grieve? And if they do, what does that actually look like? There's no clean answer. But there's a real, well-documented pattern here. And it's worth walking through carefully. What's confirmed, what's likely, and where the evidence runs out. Tahlequah's population is one of the most endangered whale groups on the planet, so a surviving calf carries enormous weight for the whole community. This calf didn't survive. Within half an hour, she was gone. What followed became known among researchers as a tour of grief, a term that stuck because nothing else quite captured it. Tahlequah kept her daughter near the surface continuously, repositioning the body each time it slipped free, sometimes diving deep to bring it back up. The physical toll was severe. Orcas need to hunt actively to sustain their energy needs, and carrying a body meant she largely couldn't. Researchers monitoring her at the time were concerned she might not survive the ordeal herself. Here's the part worth being precise about. We can't say with certainty that what Tahlequah experienced matches human grief. That's not something science can currently verify from the outside. What we can say is that this behavior wasn't reflexive, a reflex doesn't sustain itself for over two weeks, and it came at a real measurable physical cost, repeated deliberately over and over. Beyond that, the interpretation is still debated among the people who study these animals. After 17 days, she released the body. It sank. Researchers braced for a whale in physical decline. Instead, within weeks, she was foraging normally and had rejoined her group. That could have been the end of the story. It wasn't. Six years later, in December 2024, Tahlequah gave birth again, a calf researcher's designated J61. Almost immediately, observers noted signs of trouble in both mother and calf. The calf lived roughly a week before dying. Tahlequah's response was the same as before. She kept the body at the surface and began carrying it. A second tour of grief, years after the first, from the same individual. That repetition is significant on its own. A single unusual event could be dismissed as one animal's idiosyncratic reaction. Two events, years apart, under nearly identical circumstances, point to something more consistent, a pattern, rather than an anomaly. This time, researchers paid closer attention to who stayed near her. Her sister Kiki and her adult son Phoenix traveled alongside her, separate from the rest of the pod, moving at her reduced pace for an extended stretch. What's confirmed here is the proximity itself, two family members staying close to a mother who was moving slowly and likely not feeding normally for as long as she needed them to. Whether that includes active food sharing is harder to verify from surface observation alone and it's the kind of detail that's easy to assume without direct confirmation. What's solid is that her family altered its own behavior at a real cost to their own foraging time to stay near her. In 2018, that same role had belonged to Tahlequah's mother, who has since died. This time, it fell to the next generation. It's a pattern that looks familiar for a reason. When people go through loss or injury, the people who show up aren't usually strangers. They're the family and close friends already in that person's life, adjusting their own routines to stay near someone who needs them. What Kiki and Phoenix did isn't a human behavior borrowed by an animal for dramatic effect. It's the same underlying logic. Proximity, presence, staying rather than leaving. Showing up in a species that evolved it independently. Unlike most mammals, orcas don't disperse as they mature. In Tahlequah's population, offspring of both sexes typically remain with their mother for life. A 50-year-old male may still travel daily alongside the female who raised him. These aren't temporary associations. They're lifelong. That's reflected structurally in orca brains, which are large and unusually folded, with well-developed regions associated with social processing. What that anatomy translates to subjectively, what it actually feels like to be an orca, isn't something researchers can measure directly. The physical architecture for complex social cognition is well established. The internal experience behind it stays outside what science can currently confirm. One more biological detail matters here. Orcas are among a small number of species, alongside humans and a few relatives like short-finned pilot whales and belugas. Where females live for decades after their reproductive years end. That's unusual in the animal kingdom, where reproduction and lifespan are typically much more closely tied. The likely explanation is knowledge. An older female accumulates decades of information, where prey concentrates during lean seasons, migration timing, fallback locations when food is scarce. Pods with an older female present tend to fare measurably better during hard years. And the data here is striking in a darker way too. After a matriarch's death, her adult offspring show a measurable increase in mortality risk in the years that follow. Her death isn't just the loss of an individual, it's the loss of irreplaceable, decades-deep knowledge the group relied on. This same pattern – staying close, adjusting pace, not leaving – shows up just as clearly around injury as it does around death. And some of the best documented cases involve orcas that shouldn't have survived at all. Off South Africa, researchers photographed a young orca that had lost both a dorsal fin and a pectoral fin, a serious impairment to its hunting ability. Rather than leaving it behind, its group hunted collectively and allowed it to feed alongside them afterward. A more thoroughly tracked case comes from New Zealand. In 1997, a young male orca stranded on a beach north of Auckland, badly enough that the initial plan was to euthanise him. A researcher intervened and he was returned to the water. About a year later, he was struck by a boat propeller, suffering serious damage to his dorsal fin. Researchers named him Ben and expected the injury might be fatal. It wasn't. Ben has now been documented for more than 23 years. Researchers have photographed him repeatedly, tracked him traveling over 37,000 kilometers and recorded him hunting cooperatively with his pod, sharing food and even helping care for calves that weren't his own. The scars from his original stranding were still visible more than 21 years later, among the longest documented scar persistence recorded in this species. Whatever role his pod played in his recovery, the outcome is unambiguous. An orca that should have died young by most estimates, instead lived a full socially integrated life. A second, shorter case adds a useful contrast. Researchers with the Center for Whale Research documented a transient orca nicknamed Jack with a tail injury severe enough that he couldn't dive properly and began falling behind his group. Within months, he'd recovered fully and was seen hunting normally alongside his pod again. Where Ben's story plays out over two decades, Jack's plays out over a much shorter window. But the underlying pattern is the same. An injured animal, a pod that didn't abandon it, and a recovery that outside intervention had little to do with. The most striking long-term case is an orca called Stumpy, first documented off Norway in 1996 with a damaged dorsal fin and a visible spinal deformity. Researchers expected a quick death. Instead, other orcas were repeatedly seen slowing to accommodate its pace, sharing food with it and positioning themselves between it and passing boats, and multiple separate groups were documented interacting with it over the years that followed, not just its immediate family. That same attachment can turn devastating when it can't be resolved. In March 2024, near Vancouver Island, a pregnant orca became trapped on exposed rocks as the tide receded and died there, with her two-year-old calf present. The calf remained in the shallow area for over a month afterward, even after the tide would have allowed it to leave. Rescue teams attempted several approaches, including playing recorded vocalizations from its family group, It wasn't until late April that the calf crossed back into open water on its own. Taken together, these cases point in a direction worth sitting with. The presence of family and pod mates during injury or loss isn't incidental to how Orcas survive these events. It appears to be part of how survival happens at all. Tahlequah's losses reflect a broader, harder reality for her population. Among southern resident orcas specifically, research conducted under conditions of significant food scarcity has found pregnancy failure rates, including miscarriage and early calf death, as high as two-thirds. That figure is specific to this population under stress, not a general biological constant for orcas as a species, but for Tahlequah's family, it's the environment they're operating in. The drivers are largely environmental and human-caused, Collapsed salmon populations that this group depends on almost exclusively, accumulated pollutants that pass from mother to calf, and vessel noise that interferes with echo-location. Tahlequah's repeated losses aren't simply misfortune, They reflect conditions that have gotten measurably harder for her population to survive in. Every orca eventually dies and the group that survives it goes on. What doesn't disappear is the knowledge, hunting techniques, vocal patterns, memory of where to find food in hard years. That's carried forward by the family that remains, passed down the same way it was built, through decades of staying close. Tahlequah's own story reflects that. After 2018, she let her daughter go, returned to her group and continued to forage and travel normally. In the years since, she's given birth again and successfully raised surviving offspring, including Phoenix, the son who later stayed beside her through her second loss. Whether what she experienced constitutes grief in the way we understand it is still an open question and probably will be for a while. What's not in question is that the behaviour was real, repeated across years and came at genuine physical cost. And that's when it happened. She wasn't alone in it. There's an old saying that grief is the price we pay for love. Watching Tahlequah, it's hard not to wonder if that holds for her too, but that's not something a camera or a research paper can answer for you. If stories like this are the kind of thing you want more of, subscribing helps a lot. There's a lot more happening below the surface, and this channel's going deep into it, and I'd genuinely like to know, do you think what Tahlequah did counts as grief, or something else entirely? Drop your take in the comments, I'll be reading through them.