40 years on, wildlife is thriving in Chernobyl

Forty years after the catastrophic 1986 Chernobyl nuclear disaster, the exclusion zone has transformed into a thriving wilderness, now Europe's largest wild reserve spanning 4,700 square kilometers. Despite initial fears of a lifeless wasteland, wildlife—including wolves, lynx, bison, moose, beavers, and even brown bears—has not only survived but flourished. Professor Hermann Oriza-Aula of the University of Oviedo shares insights from his decade-long research on Chernobyl's frogs, revealing that despite high radiation levels, the frogs exhibit no significant health differences compared to those in uncontaminated areas. A striking adaptation: Chernobyl frogs are 40% darker due to increased melanin, which appears to protect them from radiation. The dramatic recovery of forests—doubling from 40% to nearly 80% coverage—has reclaimed towns and farmland, symbolizing nature’s resilience. While radiation remains, it has decreased by over 90%, and the absence of human activity—hunting, pollution, light and noise—has created a sanctuary for biodiversity. The war in Ukraine has disrupted research, but scientists remain hopeful to return and study the unique population of Sevalski horses, descendants of a nearly extinct species reintroduced in 1998, whose population has multiplied sevenfold and expanded across the zone. The episode reframes Chernobyl not as a dead zone, but as an unintended ecological haven.