I meant the galaxy in general. The PT is crawling with non-human races in practically every frame of the films.
Anyways, I'm not arguing anything....just pointing out observations. Most of the differences between the PT and OT can just be chalked up to enormous technology and budget differences and Lucas being able to portray more exotic aliens and in greater numbers with the advent of better prosthetics, animatronics and CGI.
Lucas once said that if prequel technology and budgets had existed in 1976 when he filmed the Mos Eisley Cantina - and I paraphrase - "it would have been a lot more exotic and interesting than guys in rubber masks with a big praying mantis sitting at the end of the bar." Love or hate the guy, but I believe him. A CGI Chalmun's Cantina would have looked like a Pixar film.