Apenheul has Hanuman grey langurs in a walkthrough habitat. I can't find much about Gibbons being more aggressive than Langurs. Additionally, Gibbons are almost completely arboreal, while Langurs are both arboreal and terrestrial. So Gibbons have an even lower chance of interacting with guests.
I think it would be a first, but I don't think it would be too much risk
Technically speaking, the white-cheeked gibbons at Bronx Zoo do have free reign over JungleWorld, primarily having access to the tapir riverbank, the intermediary jungle and even the gharial river. That being said, I've only seen the gibbons with the tapirs or the window jutting out from the Unseen Multitude gallery next to the Northern tree shrew exhibit. Plus, there's the gibbon islands at Denver Zoo's Toyota Elephant Passage (complete with ropes that go over guests' heads!) and the overhead meshed trails at Philadelphia Zoo and Zoo Knoxville but those don't really count.That exhibit with the Hanuman Grey Langurs at Apenheul is brilliant and I loved having the langurs crash around on the roof above the visitor boardwalk when I was there in 2019. I'm actually surprised that some European and Asian zoos don't have gibbon walk-throughs...surely it's been done before? I know that zero North American zoos would do it because everyone is too petrified of stupid lawsuits.
can you explain more about your experienceDelacour had gibbons free ranging at Cleres, but occasionally had to banish individuals to islands due to aggressive behavior. Frankly, having worked with three species of gibbons (most of which were decidedly unfriendly and gave me some of my earliest zoo-related injuries), I can't imagine having free-range gibbons, or having a walk-though gibbon exhibit.
I’ve always wondered. Why do they come to that window? Is it really just to interact with guests?That being said, I've only seen the gibbons with the tapirs or the window jutting out from the Unseen Multitude gallery next to the Northern tree shrew exhibit.
Mainly so, yeah! The female gibbon loves looking out at the visitors in the gallery, as if *we're* the exhibit!I’ve always wondered. Why do they come to that window? Is it really just to interact with guests?