Sand worm

Sand worms are huge worms that can be found in the Tanaris Desert.

Little is known about the sand worms. They are worm-like creatures with burrowing claws growing from the upper body. These enable the beasts to dig through most kinds of soil with frightening speed, often surprising unwary pray by bursting up through the ground beneath the creature and killing it with its sharp beak-like mouth. You can spot where they are because rocks/the ground move above them.^{[citation needed]} 

The massive worm Ouro was believed to be the only one in existence, but since release of The Burning Crusade more have been seen in Outland and even a few in Northrend.

Young burrowers are unable to tunnel, and also seem to lack the characteristic claws.

Notable sand worms

• Fulgorge
• Ouro

Types

• Crust Burster
• Dune Worm
• Greater Crust Burster
• Marauding Crust Burster
• Nethermine Burster
• Scourged Burrower
• Tunneler
• Young Crust Burster (Looks like a Worm/Rock borer because it is unable to tunnel.)

Notes

• First noted to appear in the Tanaris Desert, this was not the case. However, this has changed with the addition of Dune Worm to Tanaris with World of Warcraft: Cataclysm.
• Whilst underground, sand worms cannot be targeted. This means that you will most likely not get the opening move if you run into one — no ambush, pounce, charge, or uninterrupted starfire/shadowbolt/fireball, since you'll already be in combat if you can target it.