The siamangs have been in the PDC for a while...I'm not sure since when, but this is the old Lion-tailed macaque exhibit (last Lion-tailed macaque moved to Detroit Zoo in August). The education gallery is now a gift shop.
While searching for the Lion-tailed macaque move, I found an administrative report and I realized the zoo also acquired a new cassowary from the Houston Zoo in August.
They've been there for at least five years now. It's been siamangs, squirrel monkeys, lion-tailed macaques, howler monkeys, and Francois langurs for about the same time period. I think there was another species, but it eludes me at the moment.
The Aye-Ayes occupy a portion of the building, but the vertical portion is a poorly thought out, haphazardly repurposed gift shop. It doesn't even have primate themed gifts!
We won't even mention the poor Tamarins who spend their entire life under glass.
I find the whole area disappointing for a number of reasons, but, perhaps none more so, than the bones are there for a really good version of, say, San Diego's Monkey Trails.
This primate complex used to impress me when I visited it fairly often in the 1990s and was a less discerning zoo critic, but now it looks like a big monkey mall - a shopping mall with monkeys instead of consumer goods.
The aye-aye, patas, and mandrill exhibits still hold up and the lemur forest is excellent. It would be nice if they could modernize the rest of it into something like Monkey Trails as Buldeo suggests.