After a hundred years of absence, in the 70s beavers were settled again in Austria. A total of 32 European and 15 Canadian beavers were set up by the team of the Institute for Comparative Behavioral Research and the City of Vienna along the Danube. The Canadian beavers disappeared soon after their settlement - presumably they fell ill with domestic rodent diseases, on which their immune system was not prepared. Beaver mother passing by The European beavers, who were brought f