Out of interest, I decided to follow this list through and rank the different zoos by the number of exotic mammal species displayed. Obviously the domestics lead to some inconsistencies (most out, llamas/alpacas in), but the results were interesting. Melbourne was the clear winner with 37, followed somewhat surprisingly by Adelaide on 34 and then Western Plains on 33. At this point Mogo and Altina appear with 31 and then Taronga (its recent thinning taking its toll) and the National Zoo on 29. Next were Perth (28), Halls Gap (27), Monarto (24), Werribee (21) and Darling Downs (20). Gorge and Hunter Valley were both on 15, Tasmania Zoo and Mansfield (helped by 4 deer species) on 14, Crocodylus on 13, Australia Zoo and Queensland Zoo on 12, and Symbio and Zoodoo on 11. Of the minnows, Wings (6), Shoalhaven (5), Rockhampton (5) and Billabong (5) were the only serious contenders, and the rest were very much dribs and drabs. An interesting exercise - especially to see the private zoos equalling or outpacing the government ones (although of course given the big private zoos barely do any natives, birds or reptiles, the government zoos would far outstrip them on total species).