There is a thread I saw a while ago, that I have been trying to find (but haven't found), and I do not remember what it was called. It was basically a list of a ton of different zoo exhibits, and it gave the size of each of them (I think in square feet). I am pretty sure it was a list of only US zoos. It was probably in the US zoos forum, but I can't be certain. I would really appreciate it if anyone can help me find the thread I am looking for. By the way, I may have posted this thread in the wrong part of Zoochat. If that is so, please let me know, I just didn't know exactly where a thread like this would fit in. Thank you so much for the help.
Another option: https://www.zoochat.com/community/threads/aza-elephant-exhibit-sizes.326779/#post-685379
I did this search - you may find other useful threads listed: site:zoochat.com zoo exhibit sizes - Google Search