patrick come on, you havent been to wild asia since it opened at taronga, you havent seen GSO or even ventured into Wollemi!..............(alls fair in zoo love and zoo war).
ha ha! yes all is fair, except i have done to the woolemi exhibit and for your information i think its terrific!!
but yes, melbourne has possibly the most pathetic penguin "pool" i have ever seen! - but they get a newbie in the coastal section..
and as for the maned wolves/big cats, they may appear old and no doubt the dens are probably outdated, but for carnivores a cage is a cage. they are reasonably sized by zoo standards and have plenty of trees and landscaping.
and i'm not knocking taronga (those days are over

) so much as building melbourne up a bit. i think melb has heaps of mediocre exhibits and at least two that are downright aweful. but really, last time i was at taronga (just prior to the wild asia opening) the red panda exhibit was exactly the same setup at melbournes, only it didn't even have any large trees!!
and you have to admit the new orang exhibit is totally unsuitable for orangs. and i know you think the panda, i mean gorilla exhibit at taronga is lame too!
tarongas all hagenbeck grottoes, the sunbears have a god aweful exhibit. what about the lameo thar mountain, thats a relic (a heritage listed one too i believe!) and the barbary sheep exhibit is totally concrete hallstrom era.
(okay now i am knocking taronga!!!!

)
grant - yep, they best make those grottoes two seperate enclosures i think. although both other males are motaba's sons, apparently he really favours ganyeka and is not so keen on yakini (i think zookiah mentioned that?). there is a melbourne zoo education activity sheet here:
http://www.zoo.org.au/education/learningresources/mz/later/mz03-wildbydesign-gorilla.pdf
on the last page it mentions a few ideas, including the need potentially two exhibits and that the batchelors need to be able to see the breeding group, for potential reintroduction at later stages...