Ecologists studying Korea’s richest surviving habitat are not permitted to walk into it: they identify goral and musk deer through binoculars from behind the fence and on remote cameras, escorted by soldiers, and the survey stops where the minefield starts

South Korea’s ecologists count the Korean Demilitarized Zone among the richest wildlife habitats left in the country but almost none of them are allowed to walk into it. They study it the way you might study something behind museum glass, except the glass is a fence, the guards carry rifles, and the reason nobody walks in is that the ground is full of landmines. The thing keeping people out is the same thing keeping the wildlife alive. We are not ecologists, conservation scientists, or mine-clearance specialists, and nothing here is fieldwork advice. This is our reading of reporting and survey work done by people who do this for a living. The species counts we cite are snapshots from specific projects, not a full census of a strip of land almost no one can enter. The richest habitat you can’t walk into The DMZ is a thin band of land, roughly 250km long and 3.8km wide, drawn across the peninsula by the 1953 armistice that paused the Korean War. It has sat sealed off from people for more than seventy years. In that time it became something nobody planned: a corridor of forest, wetland, and rocky mountain where animals that struggle elsewhere in a crowded, developed country have been left mostly alone. The fieldwork looks odd from the outside. Ecologists led by Kim Seung-ho of the DMZ Ecology Research Institute do not roam the zone with clipboards. They work from the edges, watching through binoculars and pulling footage off remote cameras, under military escort. Where the mined ground begins, the survey ends. What survives in there The numbers are what make the access rules sting. A survey found 6,168 species within eight areas of the DMZ. It also recorded 102 of the 267 endangered species known on the peninsula, close to 38 percent of the country’s endangered species inside one narrow strip. The eastern mountains are where the animals in the headline live. Researchers documented long-tailed goral and musk deer in the rocky terrain, and remote cameras picked up wildcats, yellow-throated martens, and an Asiatic black bear cub. The goral is a stocky mountain goat-antelope that clings to steep rock. The Siberian musk deer is a small, fanged deer hunted heavily elsewhere for the scent gland the males carry. Both are exactly the kind of shy, edge-of-survival animal that vanishes where people move freely. Here, people mostly can’t. Seung-ho Lee of the DMZ Forum, has a phrase for what came out of all this. “We call the region an accidental paradise,” he told CNN. Nobody set out to build a nature reserve. They built a no-man’s-land, and life filled in the gaps. How you study a place you can’t enter Working from the outside is not a choice the researchers made. It is the only method the ground allows. Fieldwork happens from the edge of the zone under military permission, using observation posts, binoculars, and camera-trap footage, with animals identified at a distance rather than tracked on foot. Drones and remote cameras reach what human legs can’t. Whether satellite imagery feeds into the surveys is less clear from the public record, so we’d treat that as plausible rather than confirmed. Even this limited access is not stable. Permission to work near the zone can be pulled without warning when the security situation shifts. “One moment we’re planning research; the next, the military situation changes, and everything is put on hold,” Kim told the Taipei Times. A survey built around field seasons and animal movements has to bend around troop movements and tension on the line, which is a hard way to build a long-term record. The uncomfortable engine Then there is the thing holding the whole system in place, which no conservationist would ever design on purpose. The DMZ holds what has been described as the world’s highest density of landmines. Estimates put the number remaining at somewhere between 800,000 and one million, with the densest sector reaching more than two mines per square meter. That is the fence the animals live behind, and it is made of buried explosives. Kim does not dodge how uncomfortable that is. “I used to think I was the best environmentalist,” he told the Taipei Times, “but I realized the landmines are doing more for conservation than anyone.” He means it as a provocation, not a policy anyone sane would endorse. He puts it more sharply elsewhere: “Weapons meant for killing have become the greatest protectors of life.” It is his way of naming an irony he clearly finds bitter, not a case for leaving mines in the ground.