[i]Macropus giganteus[/i]
While watching these we pondered the fall of the Western Grey Kangaroo in Europe - we still considered this Eastern a rarer zoo animal than the Western but were aware it must be a close-run thing. Checking Zootierliste, I find Easterns are now in 23 European zoos and Western in only 16 (!) - so you're actually more likely to come across [i]giganteus[/i] than [i]fuliginosus[/i] these days. The Red Kangaroo, exceptionally rare (certainly in the UK) when I started zooing, is now the standard, with a much more healthy 84 listings.