ISv,
.
Without captive creatures, most of us mortals can't see a lot of the vast variety of the species. Nor do we really take the care to observe closely what they look like.
If the creatures are taken great care of, we should enjoy them. Only difference a captive animal don't enjoy is it's natural range of environment. Or, maybe its' own crowd.
The zoo in Pittsburgh has a great variety of creatures there, and the National Zoo in Washington, DC., also has a great program to care for their "guests."
While visiting Maui, I saw a "zoo" which has a fairly opened compound, the hosted flight-capable creatures can roam around quite freely, while the natives come and go as they choose. Food keeps them returning. And there are some less common species that are kept in their own spaces, but they look to be cared for well.
-r