Figure 3From: Genome-wide association study for posthitis in the free-living population of European bison (Bison bonasus) An example of bison affected by posthitis . A. Affected bison (Courtesy of Mammal Research Institute in Bialowieza) found in the National Park in Bialowieza. B. Magnification of genital area. Necrosis of prepuce is visible as advanced lesions in skin tissue surrounding the penis.Back to article page