Btw we europeans like to mention our native fauna zoos, the wildparks.
To maybe make the concept a Bit more acessable i thought im gonna present a bit about my local one, the wildpark düsseldorf. Its a private park on a hill in our city thats sponsored by the city with free entry.
They take care of a part of the forest while displaying in big (we talk about multiple Hektar, the wild boars for example have 5), natural habitats wild boars, red deer, a big walkthrough for fallow deer, free roaming eurasian pheasnt, mouflon and a house for Small carnivores, housing the indoor exibits for racoons, red foxes, european wildcats and polecats.
They used to have lynx, but after they died of old age their habitat was restructured to a seperate enclosure for horny fallow deer.
Besides that the park houses free forest, a squirrel rescue station, playgrounds and an education.
Ofcourse this was a rather moddest example and the animals change with the region, for example at the coast you also find seals and in the mountains their local animals like ibex and chamois.
I hope this made a Bit more clear why we want these according to some "unintetesting" animals so badly, the fallow deer being my Most wanted animal period