Just shows how much zoos changed during the last 20-odd years. It was one of first trials/experiments of indoor rainforest halls.
What animals are in Asian part of Tropic World?
The last time I was there the orangutans and gibbons were on the big concrete "island" of sorts that is elevated above the remainder (when this was first done there, mixing the 2 species was still quite unusual), and there were also gibbons ( white-cheeked ) in the main exhibit area with small clawed otters living down below. On previous visits I had seen silver leaf monkeys in the main area instead of the gibbons, and when it opened there were Tonkean macaques.
It might be worth noting that some of the species tossed around for the main exhibit area were proboscis monkeys or crab eating macaques , hence the artificial mangroves and large pool. Over the years, There have been improvements to the graphics , more birds added ( Bali mynahs among them on my last visit )and an exhibit for tree shrews was added in the foyer to Asia, but I always felt like it was the most lacking of the 3 continents represented from the minute it opened. Yet, Even with all of the fake rockwork and trees the mixed species groupings in South America and Africa were really dynamic at the time they opened.
All that concrete isn't great, that's for sure, but at least it's usable space for the animals. So many zoos now build these expensive exhibits with lush grassy tree filled sections that make us feel better for the animals, but use hot wires, fences, mesh or moats to block the animals from actually using any of that space to protect the plants.
Someone asked about other South American animals besides the 6 mammal species in the big main group, I know they had two-toed sloths and golden lion tamarins on an elevated island near the visitor walkway, dusky titis on a separate island ( I don't know if these are still in the collection ), and cotton top tamarins free ranging. Birds that I remember seeing over the years include bellbirds and king vultures ( which were quite impressive in that massive space ).
I know when Tropic World opened it was considered the largest building in the zoo work at around 100,000 square feet, and I believe that stood until Omaha's Henry Doorly Zoo build the Lied Jungle in 1992 with 123,000 square feet.
Eric in Portland, Oregon