that they do, and its about time!
after playing around on the new melbourne and taronga sites, both are an improvement but i like the melbourne on better. and before you say "surprise, surprise" this isn't me being biased. as a designer myself, melbourne's is a far better designed, more esthetically attractive and more easily navigatable site.
some pickyness just for fun:
eastern grey kangaroo factpage has an image of a female red kangaroo.
elephant factpage has (very badly) photoshopped out all the fences in the images.
all animals factpages, regardless of zoo they reside at, have the melbourne zoo colours and plant shapes (bamboo) associated with the page. this is only a shame because something zoos victoria did so well when they did the logo redesign for the lesser known zoos, was colour code each institution (see, you can create an association between the different zoos without changing their names

).
by default, most pages also have a tiger fur pattern at the top of the page. not that relevant for heallesville or even werribee.
and lastly for something REALLY picky.... i know it looks good, but for one am sick to death of seeing a silhouetted acacia trees along with some (usually) african animals used in zoo logos and promotional stuff. its been so done to death and the designers here have gone and done it again. whats worse is that the silhouette is that of an african forest elephant. picky i know.......
