Under a vast, rust-red sky, 130 burrowing bettongs bounded into the open desert of Sturt National Park in far northwest New South Wales, their tiny paws kicking up dust as they vanished into the spinifex—an echo of a species that once shaped Australia’s arid heart. These marsupials, kangaroo-sized and nocturnal, hadn’t been seen here for over a century, wiped out by feral cats and foxes after European settlement. Now, they’re back—not in a sterile sanctuary, but in a bold new experiment: a 100-square-kilometer Wild Training Zone where danger still lurks, but at manageable levels. The goal? To teach native animals how to survive alongside the predators that have reshaped their world.
For decades, conservation has relied on predator-free enclosures—safe, but limited. The Wild Deserts Project, a collaboration between UNSW Sydney, Ecological Horizons, NSW National Parks and Wildlife Service, and Taronga Conservation Society Australia, is betting on a different future. Led by ecologists Dr. Rebecca West and Dr. Reece Pedler, the team has spent a decade preparing this landscape, where feral cat numbers are suppressed to just 10% of those outside the zone. It’s not eradication—it’s coexistence. And early results are promising. Over the past two years, more than 700 animals from four threatened species—including bilbies, golden bandicoots, and western quolls—have been released, with many surviving, breeding, and even showing rapid changes in predator-avoidance behavior.
The bettong, though, is a keystone. Known as ecosystem engineers, they dig for food and build warrens, turning over soil, spreading seeds, and improving water absorption—natural processes that once sustained desert life. Their return could help heal an ecology left barren by their absence. Inside the zone, a mix of fencing strategies is used: two sides are bordered by the semi-permeable Dingo Barrier Fence, while others are sealed with predator-proof barriers. This allows researchers to control predator movement while giving native species room to roam, forage, and adapt across a landscape-scale laboratory.
Technology plays a crucial role—automated grooming traps, camera monitoring, and real-time data analysis let the team adjust predator control efforts on the fly. "We can't remove cats and foxes from the entire Australian landscape, so we need to find ways for native fauna to live with them," says Dr. Pedler. The project is already showing that survival is possible when predator pressure is low but present. As bilbies thrive and quolls hunt again, the bettongs’ return marks a new chapter: not just conservation, but evolution in action. If they succeed, this model could be scaled across the continent, offering hope that Australia’s vanishing desert dwellers might not just survive, but belong again.