AdvertisementGerman Prince Plans To Put Bison Back In The WildApril 01, 2013Soraya Sarhaddi NelsonfacebookEmailEuropean bison, or wisents, keep a safe distance from human visitors to their enclosure on the property of Prince Richard of Sayn-Wittgenstein-Berleburg in Germany's densely populated state of North Rhine-Westphalia. (NPR)