In the video here http://www.youtube.com/watch?v=eI81NzYDe6Q The zerglings and hydralisks appear to be made out of nothing but bones, and look almost like alien skeletons. In the SC2 videos the have actual flesh and skin. Is it because they're just evolving more? Just wondering....
IRL, it's simply the fact that the games have over a decade of time between the two of them; it's obvious that the art style will be different. Lore-wise, the Zerg reveal trailer mentions evolution, which as far as Zerg go is the easiest way to explain changes in appearance.
yeah. If the terrans and protoss continue to make weapons it only makes sense that the zerg continue to evolve.
Plus, in the original game they might not have been able to portray the zerg the way they really wanted to. In any case, I really like the new look to the zerg. It's like this beauiftul alien eroticism xD http://www.youtube.com/watch?v=T_0MYFcwpWg