That's really cool. It reminds me a bit of the way they connected different parts of their orangutan habitat at the National Zoo in Washington DC. They had these rope bridges, actually, and the orangs could use them to move around over the guest paths. I guess they had great confidence in the animals' staying on the bridges and not dropping down into the crowds
It was really cool to walk around in certain parts of the zoo and see them moving around above us. I think it gave the animals a better feeling of agency too, as they could move from one area of their habitat to another whenever they wished.
Unfortunately, there's no way to design something identical to that with the current game dynamics, but the glass bridge captures the feel, at least.
It's true that large primate enclosures rarely have lots of lush vegetation, because they simply tear it apart faster than it can grow in a zoo environment. That half dome exhibit posted up thread is really cool, though, and it definitely looks a lot like some of the habitats players have created.