The Red Forest, a stretch of pine trees near the Chernobyl nuclear power plant, was severely damaged by radiation after the catastrophic accident on April 26, 1986. This area, covering about ten square kilometers near the reactor, suffered the most intense ecological damage from the disaster. The Ukrainian pines absorbed between 8,000 and 10,000 rad of radiation—equivalent to 80 to 100 Gray—causing them to die within days. Their needles turned from green to a reddish-brown color, giving the forest its name. Scientists divided the area into four sectors based on the level of damage, with the most severe effects closest to the power plant. After the disaster, authorities removed the dead trees using bulldozers and buried them in pits known as "waste cemeteries." It wasn’t until several years later, after the dead wood had been cleared, that new plantations were established. Natural regrowth of pines began as early as 1994, but the area was gradually taken over by more radiation-resistant species like birch trees. Despite the passage of over three decades, the region remains one of the most contaminated places on Earth. While radiation levels have decreased significantly—by a factor of 300 for gamma rays and 100 for beta rays compared to the early years—radioactivity has not disappeared entirely; it has simply become more diluted. The Chernobyl disaster created the largest natural experiment on the effects of ionizing radiation on ecosystems. The exclusion zone around the plant has become one of the most studied environments in the world. Some research suggests that the absence of human activity has led to an increase in biodiversity, with several endangered species returning to the area. Przewalski’s horses, reintroduced in 1998, now number over 150 in the Ukrainian sector. The Eurasian lynx and European bison, once absent from the region, have also returned. However, other studies show troubling trends: bird species richness decreases with higher radiation levels, and some frogs have developed darker coloration, possibly as a protective adaptation. Butterfly populations have declined sharply, while spider numbers have increased. Fires in the area have caused radioactive particles trapped in the soil and vegetation since 1986 to be released into the air. In 2022, the ongoing war in the region reopened old wounds. During the Chernobyl battle, the Russian army dug trenches in the area, disturbing contaminated soil and increasing radioactivity by up to 20 times in some places. Researchers who have studied the area for four decades know that in the Chernobyl Exclusion Zone, nothing is ever truly buried.