Of the many native races of Azeroth, one of the most overlooked (or perhaps avoided) by both the Alliance and Horde is the Nerubian Empire. Most of the sentient races look roughly humanoid, and a sizable portion attack us largely because, as with most creatures, we are not like them. Differences make all mindful creatures wary; we fear what is unlike to what we understand, and it is much easier to empathize when we look and act similar to each other.
On the surface, the Nerubians are heavily arachnid in their shape compared to their sister races, the Qiraji and Mantid. Of course the Mantid and Qiraji both look very unlike to most of us as well, but the large .. posteriors, and very long spined legs, clicking fanged mouthparts, and overabundance of eyes compared to our own, send chills down many spines. Even their habitual swaying motions make us uneasy.
The Nerubians, however, seem to delight in their evolved spider-shape. It adorns nearly every inch of their architecture in some form; ceilings, floors, pillars, statues, monoliths, ziggurats, light fixtures and windows. Before their near-annihilation by the forces of the Lich King, they were a complex species, highly intelligent wielders of arcane magic and enthralled with philosophy. They once made jewelry, and demonstrated their own written language and literature.
As the small pockets of Nerubians who evaded the forces of the Lich King dug ever-deeper tunnels to make their escape, they encountered a tendril of the Old God Yogg-Saron's reach, culminating in a second, just as perilous, faceless enemy. This two-front battle led to the death of most of their race, and most contact we have is through their undead-raised brethren, whom we are biased to remember more vividly through inevitable combat. If there are any Nerubian queens left hiding deep, secluded and protected beneath the surface of Northrend, I would hope that someday this culture may retake its delicately crafted cities. They deserve another chance to live in peace.
(Azjol-Nerub, Ahn'kahet: the Old Kingdom [Instances], Dragonblight, Northrend, Azeroth)