The World of Warcraft is an expansive universe. You're playing the game, you're fighting the bosses, you know the how -- but do you know the why? Each week, Matthew Rossi and Anne Stickney make sure you Know Your Lore by covering the history of the story behind World of Warcraft.
If you're a troll, you owe your current faction to them.
If you've leveled in Elwynn Forest, or on Bloodmyst Isle, or the Ghostlands, or the coast of Darkshore, or even in Durotar, you've heard their battle cry. If you've adventured in Northrend, you've learned that they can indeed speak and display intelligence, and in the upcoming Cataclysm, you'll discover that they suffer from the depredations of their ancient neighbors, the naga. Whether you've seen them in Serpentshrine Cavern, fought to free them on the Isle of Quel'Danas or tried to wipe them out in Blackfathom Depths, one thing is for certain.
They are murloc.
Murlocs may indeed be one of the oldest native races on Azeroth. It's clear that they are not one of the "seed races" created by the Titans or descended from said Titanic creations. No curse of flesh seems to be inherent in their origins. Like trolls and tauren, there is no known explanation for the existence of these aquatic folk. They simply are. Interestingly, murlocs are susceptible to the plague of undeath, but at least in one location, said murlocs retained their free will much as the Forsaken do.
Beyond this part be spoilers for Cataclysm. For indeed, these piscean folk have many secrets to share and much wisdom to impart.