Sandworm's have a large hard outer shell that looks like a worm it has a mouth at the front that can close inside there is a flesh like girl that is attached to the inside of the cell almost like a tongue they wait beneath the sand and wait for human males to claim as their husband When they obtain a husband, they live together inside “the monster’s mouth” to protect their husband from the desert’s temperature, sand, and dryness, etc. They are very clingy and possessive over their husband's