-At what distance can travel/explore (or can reach furthest) these gibbons, going through this tunnel, AD?
-Such walk should be very stimulating for an animal; nice to see more and more zoos implementing tunnel-walks (at bigger distances) for their animals.
@Nikola Chavkosk - Several zoos (in USA at least) are in fact implementing this tunnel system. It seems to be a new trend (done so far with big cats and primates as far as I know). The distance is not really long, but it goes from the main exhibit, over the visitor path, to a metal tower where keepers can do enrichment.
@pachyderm pro The primary reason I think for the makeover is a vastly improved and desperately needed night house. As for the exhibit space itself, it seems to be about the same space as the old one, maybe a bit taller, but no bigger overall. (I could be off, but if it is bigger it is not by much). Also there appears to be no foliage while the old one at least had grass. So other than the night house, I think it's about an even trade but not much of an improvement.
As for the overhead tunnel trend (not just here but overall), I for one am not a fan because I like to photograph animals in a natural setting and that is impossible with this new system.
