Uruks are Orcs of the most common bloodline, they vary in all sorts of colors, from a dark green, to a rage-filled red, or even more blue-ish colors (though those are exclusive to members of clan Lak) with hair almost exclusively dark brown or black. Their size and musculature set them apart from all other races of the world, sometimes considered giants, ranging from 6 feet to 8 feet. They possess an intellect matching humans, though are often more blunt and straight forwards. Orcs who have risen to a position of power or nobility such as the Rex are known to grow horns, which is considered a sign of great power and strength within the War Nation. The exact reasoning behind the growth of horns is unknown, though many speculate it is because an Orcs tusks have grown to reach their maximum length, making a set of "tusks" grow out of their head instead.
Orcs of the goblin bloodline are notably smaller than other Orcs, although on average larger than humans. Usually reaching from 4 feet to 6 feet and not exceeding seven feet, they have lean, sinewy frames. It is rumored that the origins of the goblin bloodline began long ago, when Orcs intermingled with Elves and bore offspring. Goblins generally exhibit heightened intelligence and advanced technological abilities when compared to their larger brethren.