I just got home from visiting fam in Denver. While riding the gondola down the mountain at Keystone we saw a mule deer and a porcupine. It was awesome.
Sorry to say, a wildlife park is not a Zoo. In a wildlife park, everything belongs to the animals... There are more and more wildlife parks in the world (even in cold places like Sweden, where I'm sure the might lion will freeze his nuts off).
(Gets downvoted)