Ok now i'm no expert on the expanded universe lore BUT I was under the impression that both species were isolated and didn't really interact with other species yet in TOR they seem a rather common sight
Ok now i'm no expert on the expanded universe lore BUT I was under the impression that both species were isolated and didn't really interact with other species yet in TOR they seem a rather common sight
http://starwars.wikia.com/wiki/Zabrak
Scroll down to the History part.
The rattataki however are supposed to be quite rare.