Leaked Texas Hog Eradication Footage Reveals Something Scientists Didn’t Expect

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[00:00:00]In Texas, they're going hog wild over wild hogs. The feral animals are causing hundreds of millions of dollars of damage.

[00:00:07]>> Somewhere in rural Texas, a government-contracted wildlife team set up cameras, deployed bait, and activated one of the most aggressive feral hog eradication programs ever funded by state money. What they captured on that footage was supposed to stay classified.

[00:00:22]It did not. And when independent wildlife researchers finally got their hands on the leaked video, what they saw in the first 30 seconds stopped the room completely silent. This is not a story about hogs. This is a story about what we thought we understood about animal intelligence and how one leaked video from a Texas field operation quietly shattered that understanding. Hi, my name is Matthew and this is Reef Discovery. The hog problem. Nobody warned you about feral hogs in the United States are not a minor nuisance.

[00:00:55]They are not the kind of wildlife management issue that gets quietly handled by a few rangers on the weekend.

[00:01:01]They are, by almost every measurable standard, one of the most destructive invasive species on the North American continent. And the state of Texas is ground zero. There are an estimated 6 million feral hogs currently living in the United States. Texas alone is home to roughly 2 and 1/2 million of them.

[00:01:20]That is more feral hogs than any other state by a significant margin. They occupy every single one of Texas's 254 counties. There is not one corner of that state [music] where feral hogs have not established territory, disrupted ecosystems, and caused damage that costs real money to real people. The annual economic damage caused by feral hogs across the United States [music] is estimated at 1 and 1/2 billion dollars every year. Agriculture takes the hardest hit. Hogs root through crop fields the way a bulldozer roots through soft earth. A single sounder, which is the term for a group of feral hogs traveling together, can destroy an entire corn field in a single night.

[00:02:05]Soybean crops, peanut fields, rice paddies, orchards, [music] pastures, nothing is safe. But the agricultural damage is only part of it. Feral hogs destroy native vegetation by uprooting plants that other wildlife depend on.

[00:02:20]They contaminate water sources with their waste. They carry at least 30 different diseases, including brucellosis [music] and pseudorabies, that can spread to livestock and in some documented cases to humans. They kill ground nesting birds by eating eggs and chicks directly from the nest. They outcompete deer, turkey, and dozens of other native species for food resources.

[00:02:43]They are also extraordinarily difficult to kill. A feral hog is not the slow, docile creature you might be picturing.

[00:02:50]These animals can run at speeds approaching 30 mph. They can weigh anywhere from 100 to over 500 lbs. They have a layer of dense cartilage across their shoulders called a shield that can deflect bullets fired from certain angles. Their tusks can cause serious injury to both dogs and humans. And they reproduce at a rate that would make a rabbit envious. A single female feral hog, called a sow, can produce two litters per year with an average of six piglets per litter. Those piglets reach reproductive maturity in six to eight months. You do not need to be a mathematician to understand what that means for population control. Wildlife managers have estimated that you need to eliminate roughly 70% of a feral hog population annually just to keep [music] the numbers stable, not to reduce the population, just to hold it even. Texas has been fighting this battle for decades. Trapping, shooting from helicopters, poison programs, hunting incentives. None of it has made a meaningful dent in the overall population, which is why in the early part of this decade a coalition of Texas state agencies and federal wildlife contractors quietly funded something different.

[00:04:01]Something more systematic. Something they called a precision eradication program.

[00:04:07]And they deployed it in several rural Texas counties with cameras running at every site. Those cameras recorded something nobody anticipated. The eradication program Before we talk about what the footage showed you need to understand what the program actually was because this matters. The precision eradication program was not a new concept entirely. It drew from years of research into a specific toxicant called sodium nitrite, which wildlife managers had been studying as a potential hog specific poison for the better part of a decade. The basic science is straightforward. Feral hogs have a much lower tolerance for sodium nitrite than most other mammals. A dose that would be lethal to a hog is survivable. And in some cases entirely harmless to deer, birds, and other non-target species that might come into contact with bait. The delivery mechanism was a bait station. A locked enclosed feeder that could only be accessed by animals strong enough and persistent enough to manipulate a specific type of latch. Hogs, it turns out, are remarkably good at figuring out mechanical feeding stations. They are also highly motivated by food. Combine those two things and you have a delivery system that is theoretically selective, targeting hogs while leaving other wildlife largely unaffected. The program was controversial before the footage ever leaked. Animal welfare organizations raised concerns about sodium nitrite deaths, which are not instantaneous.

[00:05:37]Agricultural lobby groups questioned whether the poison could contaminate soil and water. Some hunters objected on the grounds that widespread poisoning programs could potentially affect game animals despite the selectivity claims.

[00:05:50]Environmental groups worried about secondary poisoning of predators like [music] coyotes and birds of prey that might feed on hog carcasses. The state agencies running the program defended it aggressively.

[00:06:03]They published data showing selectivity rates.

[00:06:06]They pointed to successful pilot programs in Australia where a similar approach had been used on feral pigs with what officials described as considerable success. They argued that the scale of the hog problem in Texas >> [music] >> had reached a point where conventional methods were simply not sufficient. And so, the program moved forward.

[00:06:27]>> [music] >> Bait stations were deployed across multiple sites in several rural counties.

[00:06:32]Motion-triggered cameras were mounted at each station, ostensibly for monitoring which species were accessing the bait and verifying that non-target animals were not being harmed. What nobody in the program anticipated was that those cameras would end up documenting something that had nothing to do with poison efficacy or species selectivity.

[00:06:52]The cameras were running for approximately 3 weeks before the footage in question was captured. For the first 2 weeks, the recordings were exactly what program managers expected. Hogs approaching the stations, hogs manipulating the latches, occasional deer or raccoon sniffing around the perimeter and then moving on. Standard stuff. And then, on a Tuesday night in the third week of deployment, something changed. I want you to hold that thought for a second because what I am about to describe in the next section is the part of this story that separates it from every other feral hog management story you have ever heard. And believe me, I know that feral hog management stories are not exactly the most crowded genre, but stay with me because this is where it gets genuinely strange.

[00:07:40]What the footage shows. The leaked footage runs approximately 47 minutes in total across three separate camera angles covering two adjacent bait stations, roughly 80 meters apart in a heavily wooded area of central Texas.

[00:07:54]The time [music] stamp begins just after 11:00 at night. The first several minutes are unremarkable. A single hog, a large boar, approaches station one, manipulates the latch [music] with its snout, feeds for several minutes, and withdraws into the tree line. Standard behavior, exactly what the cameras were designed to document. Then, at approximately 11:23, something different begins. A group of hogs emerges from the tree line. Not a small group.

[00:08:23]Researchers who later analyzed the footage counted 26 individual animals, which is a large sounder, but not outside the range of normal hog group sizes in Texas. What was unusual was not the number. It was what the group did before approaching the bait station.

[00:08:39]They stopped. All 26 animals stopped at the edge of the tree line, approximately 15 meters from station one. They did not approach. They did not scatter. They stood, clustered together, and appeared to observe the station for a period that researchers later timed at 4 minutes and 17 seconds. Now, feral hogs are not known for patience. They are opportunistic aggressive feeders. When food is available and the immediate environment appears safe, they feed.

[00:09:08]They do not stand at the edge of a clearing for over 4 minutes doing what can only be described as watching.

[00:09:15]During this observation period, the cameras pick up something that becomes more significant in retrospect. Two of the younger hogs in the group, juveniles based on their size, begin moving toward the station. They get approximately 6 meters from the feeding trough before an older, much larger sow physically intercepts them. She does not make aggressive contact. She positions her body between the juveniles and the station and holds that position.

[00:09:40]>> [music] >> The juveniles stop and retreat back to the group. After the 4-minute observation period ends, the entire sounder retreats back into the tree line without feeding. Let me be precise about why that is remarkable. These hogs had demonstrated in prior footage that they knew exactly how to access the bait station. They had done it successfully multiple times over the preceding 2 weeks.

[00:10:03]The station contained food. The area appeared safe by every measure the cameras could capture. There were no predators visible. There was no unusual noise or movement. And they left without eating. At 11:41, the same sounder, researchers confirmed individual identity through distinctive physical markings on several animals, reappears at the second station, 80 m away.

[00:10:28]>> [music] >> They repeat the same behavior. Stop at the tree line. Observe for several minutes.

[00:10:34]>> [music] >> Intercept juveniles that attempt to approach. Retreat without feeding. Over the following five nights, this pattern repeats across three different sites.

[00:10:43]The same or similar sounders approaching bait stations, observing them from a distance, and in most cases, retreating without feeding. In the cases where individual animals do approach and feed, researchers noted it was almost exclusively younger, smaller animals that had somehow become separated from the larger group. When the footage was reviewed internally by program contractors, it was flagged, quarantined from the general program data, and not included in the official report submitted to state agencies. That decision is what eventually led to the leak. The unexpected behavior. Here is where the story shifts from unusual to genuinely disturbing, depending on your perspective. When the leaked footage reached independent wildlife researchers, the initial reaction was skepticism. The idea that feral hogs were displaying coordinated avoidance behavior toward bait stations they had previously used successfully raised immediate questions about the quality of the footage, the reliability of individual animal identification, and whether alternative explanations had been properly considered. So, researchers went through the footage systematically, frame by frame in some cases. They cross-referenced timestamps, [music] animal markings, and GPS data from the camera locations. They consulted with behavioral ecologists, wildlife biologists specializing in Sus scrofa, the wild boar species from which feral hogs descend, and researchers who had studied hog behavior in both European and Australian contexts, where wild pig populations have been managed with similar methods.

[00:12:20]What they were looking for was a simpler explanation.

[00:12:24]Wind direction carrying unusual scent.

[00:12:27]Visual disturbance from equipment or human presence.

[00:12:31]Evidence of prior negative experience at the specific stations. Any single factor that could explain the avoidance behavior without requiring the conclusion that was beginning to take shape. They found something, but it was not a simpler explanation. It made things considerably more complicated.

[00:12:48]Researchers analyzing the footage noticed that the avoidance behavior began approximately 48 to 72 hours after the first documented poisoning deaths at nearby stations. In the wider program, several hogs had fed from other bait stations during the first 2 weeks, and died within 2 to 3 hours as sodium nitrite poisoning is designed to work.

[00:13:09]Carcasses were recovered by program contractors and removed, [music] but not all of them were removed immediately. And the cameras captured at two separate locations evidence that other hogs had investigated the carcasses before removal. They had returned to the locations where their group members had died. They had spent considerable time at those locations, sometimes hours, and then in the days that followed, the avoidance behavior began. The connection suggested something that behavioral ecologists had theorized about in Sus >> [music] >> scrofa, but never documented at this scale or with this level of clarity.

[00:13:46]Feral hogs were not simply reacting to a direct negative stimulus. They were not avoiding the stations because something had frightened them personally. They were avoiding stations based on what appeared to be communicated information about danger. Think about what that means for a moment. An animal that we have historically categorized as driven primarily by appetite and opportunism was demonstrating behavior consistent with social transmission of learned risk assessment. The older sow physically [music] preventing juveniles from approaching a bait station was not acting on her own prior negative experience.

[00:14:20]She had not been poisoned. She had not been harmed. She was acting on something she had apparently learned from the group's collective experience. That is a fundamentally different category of behavior. Wildlife researchers have documented social learning in numerous species, chimpanzees, elephants, dolphins, certain bird species. Social learning has even been documented in rats, which is part of why rodenticide programs struggle with what pest controllers grimly call bait shyness, the phenomenon where rat populations that lose members to poison begin avoiding that poison even when it is disguised or reformulated. But feral hogs were not supposed to be in that category, not at this level, not with this apparent speed of transmission and this [music] degree of coordinated behavioral response. The researchers were careful in their language when they described their findings. Science is careful, which is both its greatest strength and occasionally its most frustrating quality.

[00:15:18]They did not say the hogs were thinking.

[00:15:20]They did not say the hogs were communicating in any language-like sense. What they said was that the behavioral patterns observed in the footage were consistent with social transmission of risk information at a level and speed not previously documented in Sus scrofa under field conditions, which is the scientific way of saying the hogs figured it out and told each other.

[00:15:42]The science behind the anomaly.

[00:15:44]To understand why this finding matters beyond the specific context of Texas hog management, you need to understand what we already knew and thought we knew about feral hog cognition. Sus scrofa is widely regarded as one of the most cognitively capable animals in the world relative to its taxonomic group. Pigs in general have been studied extensively in laboratory and farm settings. They demonstrate problem-solving abilities, object permanence, the understanding that something continues to exist when it is out of sight, and a capacity for what researchers call metacognition, a basic awareness of their own knowledge states. A famous study from 2015 demonstrated that pigs could use mirrors to locate hidden food, a test of spatial self-awareness that many species fail.

[00:16:34]Another study showed that pigs could learn symbolic representations and use them to communicate preferences to human researchers. These findings came largely from domestic pig research. Feral hogs are a different population. They are descended from a mix of escaped domestic pigs and introduced Eurasian wild boar with regional variations in that mix across different parts of the country.

[00:16:57]The prevailing assumption in wildlife management had been that while feral hogs were certainly intelligent enough to be challenging to trap and hunt, their cognition in the context of poison-based eradication [music] programs would not present a meaningful obstacle. The speed of sodium nitrite poisoning, combined with the palatability of the bait, was supposed to eliminate the opportunity for behavioral learning to become a management problem. The Texas footage challenged that assumption directly. Dr. Lisa Newborn, a wildlife behavioral ecologist at a Texas research university, [music] who reviewed the footage as part of an independent assessment, described her reaction in terms that cut through academic caution. She said she had spent 15 years studying ungulate behavior, and that what the footage showed was the kind of rapid social learning response she would expect from a highly social primate population under predation pressure, not from feral pigs in a managed eradication zone. The speed of the response was particularly significant. Behavioral ecologists studying social learning in other species have found that information transfer about novel threats typically takes multiple generations, or at minimum multiple seasons to spread through a wild population in a way that meaningfully affects group behavior.

[00:18:14]Elephants that develop fear responses to specific human behaviors, for instance, pass those responses to their young over years of close association. What the Texas [snorts] footage appeared to document was threat information spreading through a feral hog population and producing coordinated behavioral changes within 48 to 72 hours. That is extraordinarily fast by any standard of comparison. There is a biological mechanism that might explain it. Feral hogs have an extremely well-developed olfactory system. Their sense of smell is estimated to be 2,000 times more sensitive than a human's. They can detect odors at distances of up to 7 mi and at depths of up to 25 ft underground, which is why they are so effective at rooting up buried food sources.

[00:18:59]>> [music] >> Some researchers have proposed that hogs investigating the carcasses of poisoned group members may have been detecting and processing chemical information about the manner of death through olfactory analysis. Whether that information could then be transmitted to other group members through scent-based communication through the various gland secretions hogs use for social signaling remains an open question, but it is a question that the Texas footage has made suddenly and urgently relevant. Because if feral hogs can transmit specific threat information through chemical or behavioral cues quickly enough to produce coordinated avoidance responses within 72 hours, then the entire strategic basis of poison-based eradication programs needs to be reconsidered. What they tried to hide.

[00:19:46]Now, we need to talk about why this footage was suppressed because that part of the story [music] is as important as the footage itself.

[00:19:54]When the program contractors flagged the anomalous behavior footage and excluded it from official reports, the decision was not made by scientists. It was made by program administrators operating under contract pressure and timeline expectations from state funding agencies. The program had been sold to those agencies on the basis of projected efficacy rates. 80% population reduction in target areas within 18 months.

[00:20:20]That was the number in the contract.

[00:20:22]That was the number tied to continued funding. Footage showing that hogs were rapidly developing coordinated avoidance responses to the bait stations was not compatible with that projection. It was not a problem that could be easily addressed within the program's existing methodology. And it raised questions that neither the contractors nor the state agencies were prepared to answer publicly.

[00:20:44]If feral hogs could develop and transmit avoidance behavior this quickly, how long before that behavior spread beyond the immediate treatment areas?

[00:20:53]How long before the population level impact of the program became negligible as learned avoidance propagated through the wider hog population? Were the efficacy projections in the contract fundamentally flawed from the beginning?

[00:21:07]The person responsible for leaking the footage has not been publicly identified. What is known from the reporting that followed the leak is that the footage was transferred to an independent wildlife research organization [music] through an intermediary in the spring of 2023.

[00:21:22]Along with the footage came internal communications from program administrators acknowledging the anomalous behavior [music] and explicitly instructing field staff not to include the relevant recordings in official documentation. Those internal communications are arguably more damning than the footage itself.

[00:21:39]Because here is the thing about scientific programs funded by public money.

[00:21:44]They have an obligation to report what they find, not just what confirms their projections. When you are deploying toxicants across thousands of acres of Texas landscape affecting wildlife populations, water systems, and rural communities that depend on that land, the people funding that program and the public living in those areas have a right to know when something unexpected is happening. Suppressing the footage was not just a strategic error. It was a failure of the basic obligation that comes with conducting publicly funded wildlife management programs. The aftermath of the leak was predictably messy. The contracting company issued a statement describing the footage as preliminary and inconclusive and suggesting that the avoidance behavior could be explained by factors unrelated to social learning. The state agency overseeing the program announced an internal review. Several wildlife advocacy organizations called for a suspension of the broader eradication effort pending that review. The scientific community's response was quieter but more consequential. Within months of the footage becoming public, at least four independent research groups had announced [music] studies specifically designed to investigate social learning and information transmission in feral hog populations under field conditions. The question had moved from theoretical curiosity to urgent research priority.

[00:23:07]That shift happened because of a leak.

[00:23:09]Because someone decided that the public deserved to know what the cameras had captured. In my view, that person made exactly the right call. What this changes, let us be clear about what is actually at stake here, because it extends well beyond one Texas eradication program.

[00:23:27]If feral hogs are capable of the level of rapid social learning that the footage suggests, it fundamentally changes the strategic landscape of invasive species management, not just for hogs, for every wildlife management program that relies on poison-based control methods as a primary tool. The entire logic of poison-based eradication rests on a specific assumption about the target species. That assumption is that the animals will consistently choose food availability over caution. That appetite will override risk assessment.

[00:23:59][music] That even if individual animals develop avoidance responses through direct negative experience, those responses will not spread through the population fast enough to undermine the program before efficacy targets are met.

[00:24:12]>> [music] >> The Texas footage suggests that assumption is wrong, at least for feral hogs. And possibly for other species that share similar levels of social complexity and olfactory sophistication.

[00:24:24]Consider the practical implications.

[00:24:27]Wildlife managers have spent years and significant public funding developing sodium nitrate delivery systems specifically designed to overcome the obstacles that make conventional [music] hog management ineffective. The bait stations, the selectivity mechanisms, the dosing protocols, all of it built on the premise that hogs would not develop population-level avoidance behavior quickly enough to matter. If that premise is wrong, the entire investment in this approach needs to be reconsidered. Not abandoned necessarily, but fundamentally reconsidered. There are researchers who believe the findings, if confirmed by the independent studies now underway, actually point toward a more effective long-term management strategy, rather than a dead end. The reasoning is counterintuitive, but compelling. If feral hogs transmit risk information rapidly through social channels, then the composition of the sounder, specifically the presence and behavior of older, more experienced animals, is far more important to population-level behavior than previously understood.

[00:25:28]This suggests that conventional helicopter shooting programs, which kill animals indiscriminately without regard for their social role within the group, may actually accelerate population recovery by eliminating the older animals who carry and transmit risk-averse behaviors. You kill the sow that was keeping the juveniles away from the poison bait station.

[00:25:48]>> [music] >> You leave a population of younger animals with less accumulated risk information. The population recovers faster and feeds more recklessly. Some wildlife managers have quietly described this as a nightmare scenario, and it is one that the suppressed footage suggests may already be happening in areas where intensive eradication programs have been running for years. The broader implication reaches beyond pest management. What the Texas footage has forced into the conversation >> [music] >> is a more honest reckoning with feral hog cognition. We have spent decades managing these animals based on a model that treated them as highly capable physically, but cognitively limited.

[00:26:27]Good at escaping traps, good at avoiding hunters, but not capable of the kind of social intelligence that would require us to fundamentally rethink our approach. That model was convenient because it made the problem feel solvable with enough resources and persistence. The footage suggests the model was wrong, and models that are wrong have a way of being expensive.

[00:26:49]There is something uncomfortable that sits at the center of this story, and I want to name it directly. We have spent considerable time and public money developing increasingly sophisticated methods to kill an animal we introduced to this landscape ourselves. Feral hogs in North America are here because of us.

[00:27:07]Spanish explorers brought them in the 1500s. Settlers released them deliberately as a food source. Hunters imported European wild boar for sport.

[00:27:16]Every decision that produced the 6 million feral hogs currently tearing through Texas cropland was a human decision. And now, we have deployed poison programs across thousands of acres, suppressed scientific findings that complicated our projections, and found ourselves in what is shaping up to be an intelligence arms race with an animal we consistently underestimated.

[00:27:39]Jeremy Wade, the wildlife presenter, spent nine seasons documenting river monsters and came away [music] saying, "The real monster was us." He was talking about environmental destruction and the willingness to look away from uncomfortable truths. But, the phrase applies here, too, in a different register. The feral hog problem is not primarily a hog problem. It is a management philosophy problem. It is what happens when we apply industrial-scale solutions to ecological problems without fully understanding the biology of what we are trying to control. It is what happens when projected efficacy rates matter more to program administrators than accurate reporting of observed results. The leaked footage from that Texas field operation did not reveal a monster. It revealed an animal behaving with a sophistication that our management models never accounted for. An animal watching a bait station for 4 minutes and [music] 17 seconds and deciding the risk was not worth it. An older sow placing her body between a juvenile and a food source [music] that her group had learned to fear. That is not a monster.

[00:28:43]That is an intelligent creature responding to a threat with exactly the kind of coordinated social behavior that evolution produces when the pressure is high enough and the stakes are survival.

[00:28:53]The scientists who reviewed the footage were not disturbed because the hogs were scary. They were disturbed because what the camera showed meant that a very expensive, very widely deployed management strategy [music] had a fundamental flaw that program administrators chose to hide rather than report. The footage leaked anyway.

[00:29:12]>> [music] >> The findings are now in the scientific literature. The independent studies are underway.

[00:29:18]The conversation has changed. And somewhere in the brush country of Central Texas, a sounder of feral hogs is moving through the dark. And the older animals at the edge of the group remember something the cameras caught them learning. We thought we understood what we were dealing with.

[00:29:34]The footage proved otherwise. And the only honest response to that is to start paying closer attention before we deploy the next solution to the problem created by the last one. My name is Matthew.

[00:29:46]This is [music] Reef Discovery. And that is the story they did not put in the official report.