If I could market for a Mountains pack, I feel like there are significant zoo animals that would fall under this category. Tasmania is defined by mountains, especially Cradle Mountain. So the Tasmanian devil would fit. Also this list is centered on diversity of taxa, region, and popularity. With popularity, I think it needs to be balanced similar to Wetlands where the entire list can't be composed of top animals, but different tiers and even some "dark horse." (Pun unintended but basically animals not on the wishing radar).
Tasmanian Devil - top meta list
Spectacled Bear - carnivore megafauna
Markhor - mountain ungulate from past zoo tycoon games, pairs with snow leopard areas
Gelada - popular primate
Pallas Cat - the "meme" animal plus adding another small cat to game
Greater Rhea - SA Bird choice
Alpine Marmot - rodent for taxa diversity
Mangshan Pit Viper - lack of Asian exhibit animals + snake with theme
Other options could even be Kiwi, Takin, Guanaco, pudu, Japanese Giant Salamander, Tanuki, hamadrayas baboon,, Bighorn sheep.
Tasmanian Devil - top meta list
Spectacled Bear - carnivore megafauna
Markhor - mountain ungulate from past zoo tycoon games, pairs with snow leopard areas
Gelada - popular primate
Pallas Cat - the "meme" animal plus adding another small cat to game
Greater Rhea - SA Bird choice
Alpine Marmot - rodent for taxa diversity
Mangshan Pit Viper - lack of Asian exhibit animals + snake with theme
Other options could even be Kiwi, Takin, Guanaco, pudu, Japanese Giant Salamander, Tanuki, hamadrayas baboon,, Bighorn sheep.