The aranasi are a race of spider-like demons. Their origins are not fully understood - scholars who have studied the Burning Legion speculate that they are the remnants of a forgotten race on a world long ago conquered by the armies of Sargeras.
Brood Queen Tyranna is an aranasi who rules Mardum and protects the [Sargerite Keystone].
Some of them appear to look like typical spiders. Pools of an orange fel-like substance can be found in their lairs, though what this is is unknown.
This article or section includes speculation, observations or opinions possibly supported by lore or by Blizzard officials. It should not be taken as representing official lore.
Broodmother aranasi appear to lay clutches of eggs that give birth to spiderlings. There are also aranasi, such as King Voras, who use the same model as Beth'tilac and other partially humanoid-looking fire spiders. It is thus likely that the spiderlings grow to become full spiders, then into an intermediate half-humanoid half-arachnid state, and then into adult, humanoid aranasi.