Hundreds of Wild Donkeys Released Into a Dead Desert 10 Years Changed Everything.

Donkeys were once among the most important animals that helped humans push deep into the interior of Australia. Yet it was this very species that left an ecological footprint stretching more than 150 years across the Red Desert. Australia is a land where water is more precious than gold and life survives on an extraordinarily fragile balance. In the Donkeys were introduced as a seemingly logical solution. Resilient, drought tolerant, and capable of traveling vast distances under conditions that left humans nearly helpless. But as technology advanced, the role of donkeys faded away. They were abandoned in the wilderness and from that moment a silent chain reaction began to spread across the continent. How did a decision that once seemed so sensible lead to consequences lasting for centuries? Terranworks reveals the answer in this video. Before talking about donkeys, it's important to understand a fundamental truth. Australia is unlike any other continent on earth. For tens of millions of years, its ecosystems evolved like a giant island, largely isolated from the rest of the world. That isolation gave rise to extraordinary and unique species, but it also made them exceptionally vulnerable. Many native animals had never faced predators like foxes or cats. They had no evolutionary experience living alongside large hard-hoofed animals moving in herds, relentlessly trampling the ground like livestock or donkeys. At the same time, Australia's soils are famously nutrient poor, with topsoil so thin that a single disturbance can take decades to recover. That is why when humans introduced non-native animals, the damage did not come from one dramatic shock, but from millions of small impacts repeated day after day. Foxes, feral cats, and wild dogs preyed on native wildlife and livestock alike. Rabbits stripped vegetation bare. Camels, feral horses, and wild pigs competed for scarce water sources. And then came the donkeys, another cog forced into an ecosystem that was already dangerously fragile. From that point on, everything began to slip out of ecological balance. In the 19th century, the greatest challenge facing settlers was not a lack of willpower, but a lack of logistics. Australia's interior was vast, dry, and frighteningly empty. Natural water sources could be separated by hundreds of kilometers, and under conditions of water scarcity, horses could not sustain their endurance as they did in Europe. To make matters worse, many regions were home to toxic native plants. Livestock that consumed even a small amount by mistake could die. In that context, donkeys emerged as creatures perfectly suited to the task. They tolerated hunger and thirst well, were undemanding in their diet, climbed slopes with ease, and could travel steadily over long distances for extended periods. For settlers, donkeys were not merely draft animals, they were tools that expanded the limits of human activity. Carrying surveying equipment deep into the interior, hauling water to pastoral stations, transporting gear for gold fields, and opening up routes that had previously existed only on maps. In other words, donkeys were once part of a form of soft infrastructure, a kind of living technology that substituted for engines and railways before those systems had arrived. But in the early 20th century, motor vehicles and railroads swept in. A machine could work continuously without hay, without rest, without care. In a hard-nosed practical economy, what gets replaced is rarely granted a dignified retirement. Once donkeys became a cost, the cheapest solution was to release them. And with that simple act of opening the stable gate, the foundations were quietly laid for a vast feral population in the years to come. What is frightening about feral donkeys in Australia is this. They did not merely survive, they survived exceptionally well. Many animals released into the wild decline because they cannot find food, cannot tolerate the climate, or are kept in check by predators. Donkeys, however, are the opposite. They seem almost perfectly configured for arid environments. Donkeys can drink a very large amount of water in a single session, and then travel for days, feed on coarse vegetation that other livestock ignore, and live in herds with an extremely strong instinct for locating water sources. When their numbers were still small, they existed as scattered groups around individual water points. But when these groups began to encounter one another, especially after rare rainy seasons, they merged into larger herds, increased their chances of survival, and then spread even more rapidly. With no predator powerful enough to control their numbers at scale, population growth became a curve that was hard to rein in. In just a few decades, from an abandoned remnant, feral donkeys became a genuine biological force, an army of hooves moving along water point corridors like a natural transport network, but leaving behind consequences in the opposite direction for the land and the ecosystem. To understand why feral donkeys are dangerous, look at the ground beneath them. In semi-arid regions, soil is not just soil, it is a fragile structure made up of fine particles, very little organic matter, and sometimes a surface crust formed over time. This crust acts like a lid that retains moisture, preventing scarce rainfall from evaporating too quickly, and allowing seeds to germinate. When a herd of donkeys passes through, the weight concentrated on their hooves compacts the soil, reducing its porosity and ability to absorb water. Rain then ceases to be a savior and becomes an agent of erosion. Water runs off across the surface, carrying away the thinnest and most fertile layer of soil. Strong winds that follow continue to strip away what remains. Desertification therefore does not unfold as a sudden catastrophe, but rather like a chronic disease, slow moving, yet almost impossible to reverse. At the same time, donkeys directly affect vegetation. They graze close to the ground, trample young shoots, and sometimes dig and pull out entire root systems in search of nutrients. At water points, where all species are forced to return, donkeys exert immense competitive pressure. They arrive in herds, monopolize access to water, churn it into mud, and cause banks to collapse. Native species are pushed farther away or forced to change their drinking times, and under extreme temperatures, even a small shift can sharply increase mortality rates during droughts. Worse still, donkeys also contribute to the story of wildfires by inadvertently spreading invasive grasses such as buffelgrass, a highly flammable form of dry fuel that allows fires to spread faster and burn far more intensely than under previous natural cycles. For farmers, the damage is easy to see. Fences are broken, water points are damaged, livestock are crowded out, and grazing land is exhausted. For the government, however, the problem is far more complex. Australia is so vast that it is impossible to wipe out a species using traditional methods. As a result, control programs are usually carried out on a regional basis, prioritizing areas where donkey populations are still dense and the terrain is open. Speed becomes a matter of survival. If herds are allowed to break up into smaller groups, detection and control become far more difficult and costly. Ironically, the very scale and decisiveness of these measures provoke strong public reactions. One side sees them as the only way to protect ecosystems and livelihoods. The other argues that such methods are too harsh and inhumane, calling for alternatives such as From this point on, management goals have gradually shifted from complete eradication to long-term control, an acknowledgement that this is not a battle with a quick or definitive end. When ground-based control was no longer effective, Australia was forced to take the battle to the skies. Aerial mustering emerged in this context. Light helicopters, such as the Robinson R-22 and R-44, fly low over the terrain, sometimes only a few meters above shrubs, moving in wide arcing paths to funnel donkey herds into long streams towards steel trap funnels that have been set up in advance. The goal is not to make the animals run as fast as possible, but to control the direction of their movement. With an operational range of several hundred kilometers per day, helicopters can reach areas where pickup trucks and ground control teams are completely powerless. When the objective shifts to rapid population reduction, aerial culling is deployed. This method involves shooting feral donkeys directly from helicopters. Fast, decisive, and extremely effective. During peak seasons, with just two or three helicopters, a campaign lasting only a few days can eliminate almost an entire herd of 300 to 500 animals in a large valley. Its effectiveness is undeniable, but precisely for that reason, it has become the focal point of the fiercest controversies. Amid this bleak picture, a paradoxical idea began to emerge. There are landscapes that have become so hardened that they have almost lost any capacity for natural recovery. When rain falls, it runs off instead of soaking in. When plants sprout, they die. The soil turns into a cracked, shield-like surface, and it is precisely in such places that the trampling impact of donkeys, so destructive across most of the continent, can become a form of mechanical intervention. When herds are deliberately guided within a limited area, and for a short period of time, their hooves break up the hardened surface crust, creating small fissures that allow rainwater to penetrate. At the same time, their movement mixes dry grass and fallen leaves into the topsoil, forming a natural mulch that helps retain moisture. This is not a miracle that turns desert into pasture in a single rainy season. It is more like unlocking a door. Once water begins to infiltrate, native plants have a chance to return. When plants return, their roots hold the soil. The soil holds water. Water sustains microorganisms. A slow but genuine chain of recovery begins to take shape. Closer observation shows that donkeys do not act only through their hooves. During the dry season, they may dig shallow pits in search of water or moisture, inadvertently creating temporary water points for birds, reptiles, and many other species. They also create depressions in the ground when they roll, which, when rain arrives, can retain water longer than the surrounding area, forming rare, moist microhabitats. Donkey dung provides nutrients, turning these small spots into fertile soil pockets where seeds can germinate more easily. And because donkeys travel over very long distances, they disperse seeds not only through their digestive systems, but also via their coats, helping plants spread and mix genes between otherwise isolated populations. In some contexts, donkeys grazing down the low layer of dry grass can also reduce the amount of surface fuel, making it harder for fires to spread as continuous fronts. However, this is a double-edged sword. If they simultaneously spread highly flammable invasive grasses, the risk of large fires still increases. It is precisely this duality that gives the ecological story its depth. The impact of a species is rarely purely black or white. The most important point to emphasize is this. You cannot take a handful of success stories and conclude that donkeys are the saviors of Australia. Across most of the continent, donkeys remain a damaging force because the land there does not need its surface crust broken. It needs protection from disturbance of any kind. If donkeys are allowed to roam freely, they will revert to their instincts, following water points, feeding seasonally, and exerting constant pressure on vegetation. Models that attempt to harness donkeys are only effective under very strict limits on numbers, duration, and area, combined with long-term monitoring to prevent overgrazing. In other words, this is a form of surgical intervention. Done in the right place, it can heal. Done in the wrong place, it accelerates destruction. From a management perspective then, donkeys are not a replacement for control, but merely a supplementary tool in highly specific situations. Ones that demand data, procedures, and an exceptionally high level of discipline. The story of feral donkeys in Australia shows that no technical decision is ever truly neutral when placed within an isolated and fragile ecosystem. What began as a sensible logistical solution turned donkeys into agents of profound transformation, leaving consequences that have lasted for more than a century. At the same time, those very impacts have opened up new approaches to land management and restoration, if, and only if, they are applied under strict control. Donkeys are neither purely destroyers nor saviors. They are proof of a deeper reality in ecology. The problem does not lie in the species itself, but in how humans introduce it, manage it, and learn to live with the consequences of that choice. What do you think about this story? 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