so many unique features to the koala hand and foot
hands: two thumbs, fingerprints (only non-primate with fingerprints)
feet: thumb with no claw, toe 2/3 fused together
and of course those long, sharp non-retractable claws.
@k9photo they certainly are opposable - while their feet are not as dextrous as their hands, they use them to actually grip the branches as they move through the treetops.
Ian