Seoul’s wild boars are no longer content to skulk in the city’s forested fringes. They’re charging through university campuses, rummaging through trash bins near subway exits, and startling joggers along the Han River’s tributaries. What began as occasional sightings has become a daily rhythm for residents of Ewha Womans University, the banks of Tancheon Stream, and the dense woods of Gwanak Mountain—where raccoon dogs and feral dogs now share the urban stage with their tusked counterparts. This isn’t just a quirky wildlife anecdote; it’s a symptom of a deeper imbalance, one where Seoul’s relentless urban expansion has redrawn the boundaries between human habitat and wild territory, forcing adaptation—or conflict—on both sides.
The nut graf is simple: as Seoul’s green belts fracture under development pressure and food waste becomes increasingly accessible, wildlife is not merely surviving in the city—it’s learning to thrive here. And that adaptation carries real risks, from disease transmission to traffic accidents, demanding a response that goes beyond tranquilizer darts and warning signs. To understand how we got here—and what comes next—we need to look beyond the headlines and into the ecology, policy, and human behavior shaping this uneasy coexistence.
When the Mountains Move Into the City
Seoul’s relationship with its surrounding hills has always been symbiotic. For centuries, the forested slopes of Bukhansan, Gwanaksan, and Dobongsan served as royal hunting grounds, sources of timber and medicinal herbs, and spiritual retreats for Buddhist monks. But postwar industrialization changed everything. Between 1960 and 1990, the city’s population exploded from 2.4 million to over 10 million, swallowing agricultural land and carving highways through ridgelines. By the 2000s, satellite towns like Bundang and Ilsan had turned the metropolitan area into a sprawling concrete web, leaving only fragmented patches of green—what ecologists now call “islands in a sea of asphalt.”
These fragments are precisely where wildlife persists. Gwanaksan, for instance, remains one of the last relatively intact ecosystems near downtown Seoul, home to native species like the Siberian weasel, Eurasian otter, and, increasingly, the wild boar (Sus scrofa coreanus). But as hiking trails multiply and weekend visitors abandon behind food scraps, boars have learned to associate humans with easy meals. A 2023 study by the Seoul National University’s Department of Forest Sciences found that over 68% of boar sightings in urban-adjacent zones occurred within 200 meters of trash collection points or picnic areas—a clear sign of habituation.
“We’re not seeing more boars because their population is exploding,” explains Dr. Lee Ji-young, a wildlife ecologist at the National Institute of Ecology. “We’re seeing them more because they’ve changed their behavior. They’re nocturnal less often now, bolder in daylight, and they’ve mapped out reliable food sources in places like university campuses where waste management is inconsistent.” National Institute of Ecology
“The real issue isn’t the animals—it’s the edge effect. When you fragment habitat and leave food waste unsecured, you create an ecological trap. Wildlife doesn’t invade the city; we invite them in.”
— Dr. Lee Ji-young, Wildlife Ecologist, National Institute of Ecology
Campuses as Corridors: Why Ewha Womans University Keeps Seeing Boars
Ewha Womans University, nestled against the northern foothills of Ansan Mountain, has become an unlikely hotspot for boar activity. In April 2026 alone, the university issued five separate alerts after boars were spotted rooting through landscaping near the main gate and scavenging outside student dormitories. Videos circulated on Korean social media showing students freezing mid-stride as a boar snorted past the library steps—a surreal collision of academia and wilderness.
But Ewha’s vulnerability isn’t accidental. The campus sits at a critical ecological juncture: it’s bordered by forested hills to the north and urban development to the south, making it a natural wildlife corridor. Yet unlike nearby mountains with regulated access, the university’s perimeter fencing is often outdated or breached, and its waste disposal practices—particularly around late-night food vendors—have lagged behind its academic prestige.
In response, the university partnered with the Seoul Metropolitan Government in early 2026 to install motion-sensor cameras and reinforce perimeter barriers. But as Professor Kim Soo-hyun of Ewha’s Environmental Science department notes, infrastructure alone won’t solve the problem. “One can build higher fences, but if students leave ramen wrappers on benches or dump untouched cafeteria food near the woods, we’re essentially running a 24-hour buffet for wildlife.” Ewha Womans University
“We’ve had to shift from reactive alerts to proactive education. It’s not enough to tell people ‘don’t approach the boar’—we need to explain why the boar is there in the first place.”
— Professor Kim Soo-hyun, Department of Environmental Science, Ewha Womans University
The Raccoon Dogs of Tancheon: Silent Adapters in the Storm Drains
Although boars draw gasps and headlines, it’s the raccoon dog (Nyctereutes procyonoides) that has quietly become Seoul’s most successful urban adapter. Along the Tancheon Stream—a concrete-lined tributary of the Han River that winds through southern Seoul—these nocturnal foragers have colonized storm drains, parks, and even the underpasses beneath major highways. Unlike boars, which tend to provoke immediate concern due to their size and potential aggression, raccoon dogs fly under the radar… until they don’t.
In 2025, the Seoul Veterinary Service recorded a 40% increase in raccoon dog-related reports compared to the previous year, ranging from sightings in residential alleyways to suspected cases of canine distemper transmission to pet dogs. What’s concerning, experts say, is not just the rise in numbers but the animals’ shifting diet. Analysis of scat samples collected near Tancheon revealed a startling trend: over 30% consisted of human food waste—particularly fried chicken bones, rice scraps, and discarded ramen noodles.
“They’re not just surviving on what they locate in the stream,” says Park Min-joon, a senior officer with Seoul’s Wildlife Management Team. “They’re learning to exploit the rhythm of the city—garbage night, market closures, late-night food deliveries. They’ve become opportunists in the truest sense.” Seoul Metropolitan Government Animal Protection Division
Beyond the Headlines: What Seoul Can Learn from Other Cities
Seoul isn’t alone in grappling with urban wildlife encroachment. Cities from Berlin to Barcelona have faced similar challenges, but their responses offer instructive contrasts. In Berlin, where wild boar numbers have surged in peri-urban forests, the city implemented a comprehensive strategy that includes regulated hunting in designated zones, public education campaigns, and—critically—mandatory bear-proof waste containers in high-risk neighborhoods. The result? A 22% reduction in boar-related incidents over three years, according to the Berlin Senate Department for Environment.
Closer to home, Japan’s approach in cities like Kobe and Osaka offers another model. There, municipalities have invested in “wildlife corridors”—strips of preserved habitat that connect larger green spaces, allowing animals to move through urban areas without venturing into residential zones. Coupled with strict waste ordinances and community monitoring programs, these corridors have helped reduce human-wildlife conflict while preserving biodiversity.
Seoul has begun piloting similar ideas. The Gwanak Mountain Ecological Restoration Project, launched in 2024, aims to reconnect fragmented habitats by removing invasive species and replanting native vegetation. Meanwhile, the city’s “Zero Food Waste on Streets” initiative, expanded in 2025, requires vendors in tourist-heavy areas like Hongdae and Itaewon to employ sealed compost bins—a policy now being considered for university districts.
But as Dr. Choi Eun-ji, an urban planner at the Seoul Development Institute, warns, technical fixes mean little without cultural change. “We maintain treating wildlife as a nuisance to be managed, rather than a signal that our relationship with the city’s edges is broken. Until we address the root—our waste, our sprawl, our disregard for ecological boundaries—we’ll keep putting out fires instead of preventing them.” Seoul Development Institute
The Takeaway: Coexistence Isn’t Passive—It’s a Practice
The boars of Ewha, the raccoon dogs of Tancheon, the feral dogs of Gwanak—none of them are invaders. They are survivors, adapting to a landscape we’ve reshaped with concrete, convenience, and carelessness. Their presence is not a failure of nature, but a mirror held up to our own habits: what we discard, where we build, how we ignore the quiet edges until they snort, sniff, or snap back.
What Seoul needs now isn’t more traps or taller fences—it’s a shift in mindset. We must see wildlife management not as a matter of control, but of coexistence: securing waste not just for cleanliness, but for ecological integrity; designing cities that leave room for more than just human traffic; and educating the public not to fear the wild, but to understand why it’s showing up at our doorstep.
The next time you hear a rustle in the bushes near your apartment or see a snout poking out from behind a campus trash bin, don’t just reach for your phone to film it. Ask yourself: what did we leave out that brought them here? And what are we willing to change so they don’t have to?
What’s one modest change you’d make in your neighborhood to aid reduce human-wildlife conflict? Share your thought below—let’s turn awareness into action.
