World of Warcraft: The Burning Crusade Bestiary Update

Blizzard's official World of Warcraft: The Burning Crusade website has been updated with new information about the Fel Orcs we'll be doing battle with in the expansion pack.
Mystery and speculation surround the corrupted fel orcs who recently appeared in Outland. Though little is known about these savage warriors, the most disturbing revelation to come to light is that their numbers appear to be steadily increasing. Even more perplexing is the fact that the orcs have discovered some alternate source of fel energies to feed upon, despite the slaying of Mannoroth and the Horde's subsequent release from demonic corruption. Regardless of their connection to fel energies, however, it is believed that this new breed is not working with the Burning Legion. What authority they do answer to remains a mystery.