The two species do rotate by half by. (They are rotated usually around noon or 12:30) The debrazza monkey was only here temporarily until a suitable mate was found. He will soon be leaving the zoo now that they have recently found a mate for time. I'm actually kind of sad about that though, he was my favorite in the whole building.
I have recently discovered (now that the exhibit is empty and the lights are turned off) that there IS in fact natural lighting in this exhibit. There is a small portion of the ceiling that is a skylight in the back of the exhibit that I've only noticed now because the lights in the exhibit are off.
There are future plans for this exhibit (I can't say what because nothing has been announced by the zoo publicly yet) but as of when those plans will begin/end I do not know.
