I would really love this pack, sooner or later! With building peaces or not.
Saiga (CR) - antilopinae
Absolutelly unique and Critically Endangered animal seen nowhere else.
Kiang (LC) or Onager (EN) - equidae
While Kiang is more unique in color and ear shape (no other equine with this ear shape) it's has the Least Concern of conservation.
Onager looks less unique as it would be second "donkey" after african wild ass but this species is Endangered.
(to make this pack more diverse I would add Musk deer instead but these two species are very close to my heart, that is why I've put them there and Musk deer for animal pack version instead)
Tibetan fox (LC) - canidae
Even though it's not endangered species we can agree it got it's popularity how strange and 'unamused' look it has, there is no other fox like this.
Wild Yak (VU) - bovidae
We can't forget Vulnerable wild yaks for this pack. Unique and majestic looking animal.
For exhibit animal, I am not sure.
Probably
Toad-headed agama or
Gobi racerunner
If it was an
Animal Pack (which I would be sorry for the lack of the building pieces) I would add also these animals:
Pallas's cat (LC) - felidae
Another unique and adorable 'unamused' fella.
Musk deer (VU) - moschidae
If this animal won't be represented anywhere else, it's the perfect time to make this unique Vulnerable species shine.
Hog badger (VU) -mustelidae
I am sure this one have a lot of fans and would be a second badger after the european.
Tibetan antelope (NT) -caprinae
or Tibetan gazelle (NT) -antilopinae
I can't chose between these Nearly Threatened species. They are both unique in their own ways. Gazelle is cute and fluffy, antelope is standing out more with it's unique fur pattern and horns.
Not sure if it exactly fits Mountain/Highlands but I was thinking of it as some sort of tibet/mongolia type of DLC.