Search for: [Description = "A link between dental abnormalities and loss of genetic variation has been reported for unconfined populations of American bison Bison bison \(Linnaeus, 1758\) but not for captive populations. From a zoo herd with a small founder population and likely history of inbreeding, authors report the first recorded occurrence of dental abnormalities in captive bison and the first case of supernumerary second premolars in bison."]