The ones i want
Ostrich/Emu/Cassowary/RHEA
Red crowned crane/GREY CROWNED CRANE
Saltwater crocodile/NILE CROCODILE
European badger/HONEY BADGER
Ibex/MARKHOR
all the bears/SPECTACLED BEAR/SLOTH BEAR
White rhino/BLACK RHINO
Indian rhino/SUMATRAN RHINO
Caracal/SERVAL
Indian peafowl/GOLDEN PHEASANT
Capybara/PATAGONIAN MARA/CRESTED PORCUPINE
The ones i don't care about but i see somewhat likely:
greater flamingo/AMERICAN FLAMINGO
asiatic black bear/ABB
grizzly bear/EURASIAN BROWN BEAR
american bison/WISENT
WA lion/ASIATIC LION
japanese macaque/BARBARY MACAQUE}
Also i think grey wolf/artic wolf and dingo/dhole should be separated as two different duos as they mirror each other better than the four together.
Some i got so here is an updated list of the new duos i would like:
Mute swan/BLACK SWAN
Saltwater crocodile/NILE CROCODILE
Red crowned crane/GREY CROWNED CRANE
Red necked wallaby/YELLOW FOOTED ROCK WALLABY
Platypus /SHORT BEAKED ECHIDNA
Capuchin monkey/BLACK HOWLER MONKEY
Ostrich/Emu/Cassowary/GREATER RHEA
Chinese pangolin/GIANT GROUND PANGOLIN
Nine banded armadillo/GIANT ARMADILLO
Crested porcupine/ARBOREAL PORCUPINE
Meerkats/DAWRF MONGOOSE
Wolverine/HONEY BADGER
Dama gazelle/GERENUK
Plain's zebra/GREVY'S ZEBRA
Reticulated giraffe/MASSAI GIRAFFE
Capybara/PATAGONIAN MARA
Caracal/SERVAL
Japanese macaque/LION TAILED MACAQUE
Indian peafowl/GOLDEN PHEASANT
Tasmanian devil/TIGER QUOLL
American alligator/CHINESE ALLIGATOR
Saiga/BLACKBUCK