European bison

European bisons genetically on the edge

August 4th, 2009 Despite the numbers of wild European bison rising in the last 50 years, the species remains extremely vulnerable to extinction. One of the two remaining wild herds of pure bred European bison is now formed by 800 individuals but in terms of genetic diversity it is down to an effective population size of just 25. European bisons survive in the wild in just two herds, each living on either side of the Bialowieza forest which straddles Belarus and Poland. BBC