[theultdev]

I don't think those can be considered zoos from your description.

And maybe stop going to them (you went to a few?) and they will become even less common.

Never seen one of those, but there's plenty of private animal habitats I've seen that take injured and stray animals.

Usually just ran/funded by someone who loves animals.

[daveslash]

I went there as a kid. One visit was actually a school field trip. I have not been to one in nearly 30 years. And I should have more clearly said that I've only actually been to one, but have seen others while traveling. That was my mistake in saying that I've been to a few.