This is an aside, but if you're ever in San Diego their Wild Animal Park was an amazing animal sanctuary that was not like a zoo, i learned so much about what animals need to thrive in plenty of space and natural habitats through my time there.
---------- Post added at 09:07 AM ---------- Previous post was at 09:04 AM ----------
Oops, I guess it's called safari park now. Their work with rhinos and setting up an environment where they felt comfortable breeding (bc rhinos won't breed in captivity, so this place is set up so the endangered animals feel like they're still in the wild - it's a huge park not closed exhibits) was really inspiring.
http://www.sdzsafaripark.org