Board Thread:Online Discussion/@comment-180.95.18.10-20130528000937/@comment-10445076-20130605213740

I think its just technological. The same thing happened in Halo with the Sangheili, they changed in every game as Bungie/343's tech got better. But a lore based awnser, hmmm, cant think of a good one other than the whole lviving in a harsh place for so long would make one look worn.