evolution and non-human biology in the Chernobyl area. However, some of Møller's research has been criticized as flawed. Prior to his work at Chernobyl, Møller was accused of falsifying data in a 1998 paper about asymmetry in oak leaves, which he retracted in 2001. In 2004, the Danish Committees on Scientific Dishonesty (DCSD) reported that Møller was guilty of "scientific dishonesty". The French National Centre for Scientific Research (CNRS) subsequently concluded that there was insufficient evidence to establish either guilt or innocence. Strongly held opinions about Møller and his work have contributed to the difficulty of reaching a scientific consensus on the effects of radiation on wildlife in the Exclusion Zone. More recently, the populations of large mammals have increased due to a significant reduction of human interference. The populations of traditional Polesian animals (such as the gray wolf, badger, wild boar, roe deer, white-tailed eagle, black stork, western marsh harrier, short-eared owl, red deer, moose, great egret, whooper swan, least weasel, common kestrel, and beaver) have multiplied enormously and begun expanding outside the zone. The zone is considered as a classic example of an involuntary park. The return of wolves and other animals to the area is being studied by scientists such as Marina Shkvyria (National Academy of Sciences of Ukraine), Sergey Gaschak (Chernobyl Centre in Ukraine), and Jim Beasley (University of Georgia). Camera traps have been installed and are used to record the presence of species. Studies of wolves, which are concentrated in higher-radiation areas near the center of the exclusion zone, may enable researchers to better assess relationships between radiation levels, animal health, and population dynamics. The area also houses herds of European bison (native to the area) and Przewalski's horses (foreign to the area, as tarpan was the native wild horse) released there after the accident. Some accounts refer to the reappearance of extremely rare native lynx, and there are videos of brown bears and their cubs, an animal not seen in the area for more than a century. Special game warden units are organized to protect and control them. No scientific study has been conducted on the population dynamics of these species. The rivers and lakes of the zone pose a significant threat of spreading polluted silt during spring floods. They are systematically secured by dikes. Grass and forest fires It is known that fires can make contamination mobile again. In particular, V.I. Yoschenko et