This specific enclosure was made and created for my exhibit showcase thread, and was designed to highlight many of the unique animal life that calls the Pantanal their home.
The exhibit consists of a rather large island, encircled by a moat full of koi, pond skaters and frogs. The howlers come out in the afternoon. I was lucky enough to hear the howlers vocalising, and surprisingly it sounded like a sort of growling? Got an audio recording if anyone wants to hear...