More hard hitting questions. You can only choose one of each set. Though I've tried to group them somewhat similarly, not all sets are part of the same family, some are group in some other way according to the way my brain works.
Spectacled Bear or American Black Bear
Howler Monkey or Hamadryas Baboon
Coatimundi or Tree Kangaroo
Ocelot or Pallas Cat
Greater Rhea or Shoebill
Duck (any species) or Pelican (any species)
Walrus or Muskox
Markhor or Blackbuck
Spider Monkey (any species) or Golden Snub Nosed Monkey
Patagonian Mara or Rock Hyrax
Otter (Temperate Species) or African Civet
Serval or Racoon Dog
Giraffe (second species) or Zebra (second species)
Elk or Himalayan Tahir
Honey Badger or Black Footed Ferret
Bat Eared Fox or Bush Dog
Gelada or Squirrel Monkey
Brazilian Porcupine or Aye Aye
African Leopard or Lion (second sub-group/Asiatic)
Numbat or Brushtail Possum