For some reason, there seems to be very little European animals in US zoos. Does anyone know why this is? I sometimes see Red Deer, European Honey Bees, Eurasian Eagle Owls, Mute Swans, Whooper Swans, and Eurasian Lynx kept, but that is about it. I know animals such as Wolverines, Golden Eagles, Monarchs, Gray Wolves, Moose, and Red Foxes, which have subspecies in both Europe and North America are kept, but only the NA subspecies is kept. I am especially interested in the status of threatened/declining species, such as European Mink, Eurasian Water Vole, Eurasian Red Squirrel, European Bison, Eurasian River Otter, Western Capercaillie, and European Eel.