Scientists Say the Anasazi Didn’t Vanish — And the Evidence Is Surprising

Added: 2026-05-10

[00:00:00]From about 900 to 1150 AD, the Anazi flourished. Their center was in Choco Canyon. For 150 years, every textbook said the same thing. The Anazi vanished.

[00:00:12]A peaceful farming civilization built fivetory stone palaces in the New Mexico desert, aligned them to the stars, then walked away around 1200 AD, and disappeared from history. The Anazi disappeared.

[00:00:28]No one knows exactly why they left behind abandoned buildings and their bones. No one knew where they went. No one could explain why they left. It was the great unsolved mystery of the American Southwest. Then scientists pulled DNA from the bones buried beneath those palaces. And what came back didn't just rewrite the story.

[00:00:52]It exposed something that had been hiding in plain sight for 800 years. A city in the desert. Cho Canyon sits in the high desert of northwestern New Mexico. A shallow cut of sandstone about 9 mi long, surrounded by nothing. No river of any consequence, no fertile valley, no obvious reason, looking at it today, why anyone would build anything there at all. And yet between roughly 900 AD and 1150 AD, this empty stretch of canyon became the political, religious, and architectural center of a civilization that stretched across 90,000 square miles. The Choco sphere of influence expanded outward from Cho Canyon, spanning by some estimates nearly 90,000 square miles, an area bigger than Ireland, an area larger than Ireland. Here's what makes it strange.

[00:01:45]They built more than 150 great houses.

[00:01:48]Massive stone structures rising up to five stories, some containing over 600 rooms constructed with a standard of masonry that modern builders still find difficult to replicate. They align the rooms to the movements of the sun and moon across decades long cycles. A spiral petroglyph on faj marks the summer solstice to within a matter of minutes. Steven Lexon, an archaeologist at the University of Colorado Boulder, who has spent more than 40 years walking these ruins, has called Choco the most perplexing thing in North American prehistory. He doesn't mean that as praise. He means that nothing about Cho fits the pattern of a peaceful farming culture. And they connected it all. A network of roads, some 30 ft wide, ran in perfectly straight lines across the canyon country for hundreds of miles.

[00:02:38]They climbed cliffs rather than going around them. They ignored terrain. They were built to communicate something about the culture that made them. And nobody could agree on what. At the center of every great house sat aka circular sunken ceremonial chambers where whatever held this civilization together was reinforced generation after generation for nearly three centuries.

[00:03:00]They built a world of sophisticated architecture, engineering, and urban planning, of astronomical recordkeeping, and pottery adorned with fine art. But all that was shattered around 1,200 AD.

[00:03:14]And then around 1200 AD, it ended. Not gradually. The great houses were abandoned within a few generations. The roads fell silent. The population that had built one of the most ambitious construction projects in prehistoric North America simply walked away and left it all standing. Perfect masonry, fivetory walls, ceremonial chambers full of ritual objects, empty. The answer that settled into textbooks was reassuring. A peaceful farming civilization, democratic, egalitarian, nearly utopian. A people who worshiped the sun and the corn and the seasons lived in harmony with the land and for reasons unknown dispersed into the desert and faded from history. They were given a name borrowed from the Navajo language, anazi, a word now understood to carry uncomfortable connotations, which is why many archaeologists today prefer ancestral pbloan. But for most of the last hundred years, Anosazi was the name attached to the mystery. A civilization rose. A civilization vanished. Here are the ruins. That was the story taught to generations of school children, peaceful farmers, lost civilization. Vanished people. The problem is that nearly every part of that story was built before anyone could read the bones. And the bones, when they were finally read, said something nobody was prepared to hear. The dynasty in room 33. For most of the 20th century, ancient DNA analysis didn't exist.

[00:04:47]Archaeologists studied the Anastazi with pottery fragments, architectural styles, and oral traditions when descendant communities were consulted at all, which wasn't often. The bones themselves sat in museum drawers in New York and Cambridge and Washington, largely unread. One man kept telling his colleagues those bones were trying to say something, and his colleagues kept wishing he would stop. His name was Christy Turner. We'll come back to him.

[00:05:14]Then in the 20110s, ancient DNA sequencing reached a level of precision that allowed researchers to extract readable genetic material from Chakawan skeletal remains. The first study at Pueblo Bonito, the grandest great house in the canyon, produced a finding that should have ended the peaceful egalitarian narrative on its own. The individuals buried in room 33 were not a random cross-section of the Chakawan population. They were related closely through the female line across nine generations. This was a matrineal dynasty, a ruling lineage that had buried its dead in the same chamber for more than 300 years. And get this, the grave goods were not the burial offerings of equal citizens in a democratic farming community. reed mats, turquoise by the thousands of pieces, conch shell trumpets from the Pacific coast. The archaeologists who followed, Turner confirmed that what they had found amongst these hills were not just the typical findings of any graveyard.

[00:06:14]In at least one in every 50 cases, the trail led to murder and worse. The bodies were dismembered and the bones broken into fragments. These were the tombs of a hereditary elite. The textbooks had described a people without kings. The DNA described a dynasty. Stop and let that land for a second. Because if a hereditary dynasty ruled Cho Canyon for nine generations, then everything you were taught about peaceful egalitarian Anastasia farmers was a story written by people who never opened the drawer. If you want to see how deep this rewrite actually goes and what the DNA found next is genuinely worse than a dynasty, hit subscribe before we go any further. The next finding is the one that made researchers stop publishing for almost a year. When researchers compared the broader Chakawan genetic profile to the surrounding populations of the ancient southwest, something did not align. The ancestral PBloans of the wider region shared a clear consistent genetic signature detectable in nearly every skeletal sample across the four corners. But at Cho Canyon itself, and particularly among the elite burials, there were additional signals. signals that did not match the surrounding populations. Signals that appeared to have entered the Chaoan gene pool from somewhere else, somewhere outside the Southwest. Something, or more accurately, someone had come in from elsewhere. And whoever it was, had made it directly into the ruling lineage with the trail south. In archaeology, genetic discontinuity of this kind almost always points to migration, a new population arriving, a new power structure being established, and the timing aligned with exactly the period when Choco was transforming from a scattering of pit house villages into the most ambitious architectural project in prehistoric North America. Something had arrived around 900 AD. Something that took up residence in the most elite spaces.

[00:08:14]something that introduced a new genetic signal, a new architectural ambition, and a new concept of how power should be organized. The question that followed was obvious. Where had it come from? The DNA could point to the answer, but not deliver it alone. So, the researchers looked south. They looked at the trade goods that had begun appearing in Choco around the same time the new genetic signal showed up. Today, new forensic findings are casting this ancient, supposedly peaceloving people in a very different light.

[00:08:47]Our view of the Anosazi is being turned upside down. Macau feathers from tropical Mexico. Copper bells from the Mesoamerican metallurgy tradition. Cacao residue identified by biochemical analysis on ceremonial vessels. A plant that grows only in the lowland tropics.

[00:09:06]more than a thousand kilometers away.

[00:09:08]The genetic trail and the material trail agreed. The signal was pointing toward the Valley of Mexico. Here's the catch.

[00:09:15]The Valley of Mexico in the 9th century was a world in transition. The great classical civilizations of Meso America were breaking apart. Teayoti Wakan, once the largest city in the Americas, had collapsed a few centuries earlier. The Maya in the southern lowlands were entering the crisis that would empty their cities within a hundred years.

[00:09:36]Power was fragmenting. Populations were moving. And the religious and political traditions of Mesoamerica were looking for new ground. At Wupatki on the western edge of the Chakawan world, archaeologists found a ball court, not a version of one. An actual Mesoamerican ball court of the kind used for ritual games played across the valley of Mexico for more than a thousand years. There was no tradition of ball courts anywhere else in the southwest. It had been imported inside Choco itself. At the great house called Cetro Keel, a colonated facade was built along one of the central walls. Columns arranged in a row along a ceremonial space exactly matching the architectural style of Mesoamerican temples hundreds of miles to the south. At some point later in Cho's history, someone filled the columns in as if the signature had become uncomfortable. But the original construction was unmistakable. Then came the teeth in the ceremonial heart of Pueblo Bonito among the elite burials that had already yielded the dynastic matrinal signal. Researchers found a single filed tooth, a specific style of dental modification shaped and chipped in a pattern common across Miso America and completely unknown anywhere in the southwest, the Great Basin, the Rocky Mountains, or the Great Plains. There was no tradition of tooth modification north of Mexico. None. And yet there it was in the grave of an elite chaon. A signature that could only have been carried north by a person born and raised in Meso America. The man nobody wanted to hear. The genetic data confirmed what the dental evidence suggested. The outlier signals in the Chakawan ruling burials aligned with populations from central Mexico. Not in large numbers, not a mass migration, a small concentrated presence deposited directly into the highest status spaces of the most powerful great house in the canyon. A picture was beginning to assemble itself. Around 900 AD, a small group of people from the collapsing Mesoamerican world traveled north, perhaps a few dozen, perhaps a single founding lineage. They arrived at Choco with knowledge, architectural, astronomical, religious, and within a few generations, Choco transformed from a modest agricultural settlement into a coordinated theocratic center with a ruling dynasty that would hold power for nearly three centuries. But here's where it gets strange. A peaceful egalitarian farming community does not transform itself into a coordinated theocracy with monumental architecture overnight.

[00:12:11]Civilizations of that kind are almost always the work of organized elites with a template in mind.

[00:12:16]>> The Anosazi have been portrayed as peaceful, happy farmers, you know, with no problems.

[00:12:24]But u you will see the evidence of violence and warfare almost every place you look.

[00:12:29]>> The template at Choco looked increasingly like a smaller northern copy of the Mesoamerican theocratic model. And the Mesoamerican template came with something else. Something the archaeological record had been hinting at for decades, but that most researchers had been reluctant to name out loud. Because what these people brought was not just architecture and astronomy. It was a religion that required blood. Now we come back to Christy Turner. For more than 30 years, Turner, a physical anthropologist at Arizona State University in Tempe, stood almost alone in trying to explain what the Choan bones were actually showing.

[00:13:04]And for 30 years, his colleagues wished he would shut up. He had trained as a forensic consultant. He had worked with American police investigating homicides.

[00:13:13]He knew what human bones looked like when they had been treated gently after death. And he knew what they looked like when they hadn't. The first time Turner laid out the Choan skeletal collections under fluorescent light in his lab in Tempe, he later told an interviewer he felt physically sick. The bones had been processed, not buried, not cremated, not laid to rest in any way that resembled the ceremonial traditions of the surrounding ancestral PBLO and world.

[00:13:40]They had been dismembered, broken, burned, and scattered, and the damage on them matched with disturbing precision.

[00:13:47]The damage Turner saw on the bones of animals butchered for food. He spent decades building a forensic checklist.

[00:13:54]Six criteria had to be present before he would conclude that a skeletal assemblage showed evidence of cannibalism. Not violence, not ritual mutilation, actual processing of a human body as food. Every one of those criteria came from his work with homicide investigators on actual American crime scenes. The test that ended the debate. Listen to these criteria carefully. First, burning on the backs of skulls but not on the faces. That pattern only happens when a head is placed on a fire while the brain is still inside. Second, anvil abrasion, the distinctive scraping pattern left when a defleshed bone is smashed between two stones to extract marrow. Third, cut marks made by stone tools at the joint end points, exactly where tendons hold muscle to bone, the same locations of butcher cuts. Fourth, pot polish. A fine abrasive sheen left on bone fragments stirred inside ceramic cooking vessels.

[00:14:53]Fifth, fracture patterns consistent with breaking fresh bone, not weathered, not old. Sixth, and most damning, the systematic absence of vertebrae.

[00:15:03]Vertebrae are the richest source of marrow in the human body. In nearly every assemblage Turner examined, they had been pulverized and were simply gone. Turner discovered what he was looking for. a single filed tooth.

[00:15:17]>> I think we've got the direct link between Meso America and the Southwest.

[00:15:22]So, what do I say? I've got a I've got a I've got a Mexican over here someplace with chip teeth. And get this. Applied to the Chakoan material, the checklist produced a result the field could not dismiss. Turner and his colleagues identified nearly 300 individuals across dozens of Chakawan sites whose remains met the full forensic criteria. Men, women, children, infants processed identically to the way Chakone hunters processed deer and rabbit. Even then, many researchers argued that processing did not prove consumption. The bones showed butchering. They did not show eating. The gap between butchering and consumption was where the debate lived for more than 20 years. Then in 1997, the gap closed. At a site called Cowboy Wash in southwestern Colorado, excavators found the remains of seven individuals processed according to every one of Turner's six criteria. And in the hearth at the center of the community, alongside the cooking vessels, they found something else. A cop prolite desiccated human feces preserved by the dry desert climate deposited at the scene of the processing. Here's where it gets unsettling. Richard Marlor, a biochemist at the University of Colorado School of Medicine in Denver, took the co-proly to his laboratory and designed a test for a single protein, human myoglobin. Myoglobin is found only in skeletal muscle. It does not exist anywhere else in the human body. It is not present in the intestinal tract of a person who has eaten plants or animals.

[00:16:59]The only way human myoglobin can appear in human feces is if one human being has consumed the skeletal muscle of another.

[00:17:06]Marlor ran the test six times in triplicate with every possible control.

[00:17:11]And on the sixth and final run, alone in the lab late at night, watching the result come back positive again, he would later describe the moment as the loneliest of his career. He had just confirmed biochemically the first proven case of cannibalism in the prehistoric American Southwest. Cannibalism at Cowboy Wash was no longer a hypothesis.

[00:17:32]It was a fact. And once Cowboy Wash was accepted, the broader Chakon pattern fell into place. Roughly one in 50 skeletal remains from the Chakone world showed the full forensic signature. 90% of the processed remains were found in or near Shakawan ceremonial centers. The cannibalism signature appeared in the archaeological record almost exactly when Chako rose and it vanished almost exactly when Chako fell. Across the Cho region, Turner examined remains from almost 80 sites and he found clear evidence of cannibalism in about half of them. This was not the signature of starvation. It was not the signature of conflict. It was the signature of something organized, a religion of blood. Here's what the evidence taken together was telling them. A small group had arrived at Choco from the collapsing Mesoamerican world sometime in the late 9th century. They had brought the ball courts and the colonated facades and the astronomical alignments. And they had brought the religion that had sustained Mesoamerican elites for centuries. A religion in which the universe required blood to function. A religion in which the consumption of human flesh performed by priests and sanctified by cosmic necessity was the ultimate expression of power over other human beings. In the Valley of Mexico, this religion had been the foundation of social control for a thousand years. Elite priests consumed the bodies of sacrificed captives. The gods demanded it. The priests administered it. And anyone who resisted would themselves become the next offering. Transplanted to the American Southwest. This religious model did not require a large population of believers to function. It required a small, organized, ruthless elite and a terrorized local population willing to comply. The Anastasia in this reading were not the cannibals. They were the subjects, the victims. The population held in place for nearly three centuries by a ruling lineage that had imported a system of religious terror from a thousand miles away. cannibalism as weapon rather than cannibalism as nutrition. The forensic record does not show communities routinely eating their dead. It shows concentrated catastrophic events, entire families processed in a single night, children killed alongside their parents, bodies dismembered with ceremonial precision and left scattered in the ceremonial rooms of great houses where everyone in the region would know what had happened and why. The purpose, Turner argued, was not food. The purpose was message. A terror campaign requires relatively few victims to subjugate a population of thousands. Word of what had happened in one village was enough to guarantee compliance in 50 others.

[00:20:17]The threat did not need to be carried out often. It only needed to be credible. And here's where the story becomes genuinely difficult to tell responsibly. Lee Kuwani Suma, the Hopi tribal historian and former director of the Hopi cultural preservation office in Kikmovi, Arizona, has spent his life carrying his people's oral history of the Choco era. When asked about the cannibalism findings, he has been careful but firm. Yes, our ancestors knew something terrible happened in the great houses. The stories carry it. The dances carry it. But what happened at Choco was not who we are. It was done to us. That distinction matters. Kuan Wisuma and his elders have pointed out correctly that cannibalism accusations have been used throughout American history to dehumanize native peoples.

[00:21:05]Despite the strong evidence of cannibalism, some scientists are still not convinced.

[00:21:11]In fact, there are those who believe that Turner is not just wrong, but that he's inflicting a new violence on Native Americans. uh just to to call somebody accountable um is dehumanizing. You make them less than than human than you are. The Hopi, the Zouri, the Akoma, and the Rio Grande PBLO have insisted for decades that whatever happened at Choco happened to their ancestors, not because of them.

[00:21:36]And the evidence supports them. The genetic signals, the dental modifications, the architectural signatures, the myoglobin in the coprolites, all of it points exactly where the descendant communities have said it points. A small messamerican derived elite, a terrorized local population, a theocratic system maintained through religious violence until it collapsed under its own contradictions. The cannibalism at Choco was not a feature of Pueblo and culture.

[00:22:05]It was a feature of what had been done to Puebloan culture by an imported ruling class that used a borrowed religion to hold power for two and a half centuries. The Chaan world was not built on consent. It was held together by terror. And terror, as every civilization that has ever relied on it eventually discovers, is a system with an expiration date. They didn't vanish.

[00:22:28]Around 1150 AD, the expiration date arrived. The first signal came from the climate. Tree ring analysis across the four corners region, a method that allows researchers to reconstruct rainfall patterns yearbyear going back more than a thousand years, shows that the warming trend that had sustained Chakoan agriculture for three centuries broke in the middle of the 12th century.

[00:22:52]Between roughly 1130 AD and 1180 AD, the southwest entered a prolonged drought.

[00:22:58]The rainfall patterns that had allowed Cho and farmers to grow maze at altitudes that should never have supported it began to fail season after season. Cho had always been vulnerable to this. The canyon itself had no reliable water source. The great houses had been sustained by an immense coordinated effort to move food and materials from the outlying regions into the ritual core. When the outlying regions could no longer produce surpluses, the ritual core lost the ability to feed itself. The tribute stopped flowing. The coordination broke down. And then the second signal appeared. And this one is visible in the bones. The cannibalism signature present in the Chakawan archaeological record for more than 200 years begins to disappear almost exactly when the drought begins. Turner suggests the Anazi may not have been the cannibals, but their victims. The latest forensic assemblages that meet Turner's full sixpoint criteria cluster tightly in the decades around 1150 AD. After 1180, they essentially stop appearing. The system that had produced those remains for a quarter of a millennium ceased to produce them at all. Whether the local population rose against the ruling elite, whether the priests themselves lost the religious authority that had allowed the system to function, or whether the entire coordinated theocracy simply dissolved under the pressure of a failing food supply, the archaeological record cannot say for certain. What it can say is that within a few decades of the drought's arrival, the great houses were being abandoned, not destroyed, not burned, abandoned. The residents walked away and left their homes standing. By 1200 AD, the depopulation of the canyon was well underway. By 1300, the four corners region was effectively empty of human habitation. The ceremonial chambers fell silent. The roads that had stretched across 90,000 square miles were reclaimed by desert. The great houses were left to the wind and the sun. This is the moment the textbook narrative settles on. The vanishing, the mystery, the lost civilization, the empty buildings. And this is the moment where that narrative has always been wrong. Because the depopulation of Choco was not a disappearance. It was a migration. The people who had survived the Chakawan system for 2 and 1/2 centuries did not vanish into the desert. They moved south and east following the rivers that still ran to the Rio Grand down to the little Colorado to the meases and fertile valleys where farming was still possible in a drying climate. They carried with them the knowledge of agriculture and astronomy and masonry that had sustained their ancestors. And they left behind the ceremonial centers of a theocratic system that had stopped being worth preserving. For more than six centuries, the story of where those people went was told only in the oral traditions of their descendants. Traditions the academic world largely refused to treat as evidence. What ancient DNA has now done in a series of studies completed over the last decade is confirm what those oral traditions had been saying all along. The Anastasia did not vanish.

[00:26:03]Their descendants have been living in plain sight the entire time. The Hopi on their meases in northern Arizona, the Zouri in western New Mexico, the Akoma, the Rio Grande pueblo. 21 pblo nations that still farm the same valleys perform ceremonies that descend directly from the kas of the great houses and carry in their bodies the exact biological record of the people who built Choco. A civilization was called lost while its descendants lived in plain sight. A people were called, vanished while they farmed the same valleys, performed the same ceremonies, and carried in their bodies the biological record of the ones who had built the great houses. The oral traditions told the story accurately for 800 years. The archaeologists simply refused to listen. Ancient DNA did not rediscover the Anastasia. It confirmed what had never actually been forgotten, except by the people who came later and decided the story needed an ending. The real mystery of the American Southwest is not what happened to the people who built Choco Canyon. It is how long it took the rest of us to notice they were still here. And it raises a question that should make every history textbook uncomfortable. If the most famous vanished civilization in North America was never actually missing, how many other lost peoples in the history books are simply the descendants of people the historians refuse to see? Tell me in the comments, does this change how you think about every other vanished civilization you were taught about in school? And if you want to see what Ancient DNA is doing to the story of another supposedly lost people in the Americas, the next video is one you're going to want to watch. I'll see you there.