The wisent, or European wood bison, is the largest and heaviest land mammal in Europe, and the last of the European bison. It is about 330 cm long, nearly two meters tall, and may reach up to one metric ton in weight. In 1921, due to the anarchy of the World War I and the years that followed, poachers almost eliminated the entire wisent population. As of December 31, 1997, specialists managed to preserve 1,096 wisents in zoos, and 1,829 in the wild.
Wisent/European bison - The European bison, also known as wisent, or the European wood bison, is the Eurasian species of bison. European bison were hunted to extinction in the wild in 1919 and in the Western Caucasus in 1927, but have since been reintroduced from captivity into several countries in Europe. They are now forest-dwelling. They have few predators (besides humans), with only scattered reports from the 19th century of wolf and bear predation.
European Bison I had never heard of this close relative of the American Bison until today. Check this out, too: http://www.spiegel.de/international/germany/prince-to-reintroduce-european-bison-to-germany-a-874387.html