Classification: Extraterrestrial Sandworm
Description: The sandworm of Arrakis stands out as one of the most astounding and influential lifeforms in the universe. These massive, water-intolerant creatures reportedly reach lengths of up to 450 meters (1,476 feet), though some report even greater sizes. They thrive beneath the sands of barren Arrakis and rise to the surface when summoned by threatening sounds or a rival worm. While the creatures boats nothing more than animal intelligence, their larval sandtrout form produces a substance with profound influence on human civilization: an awareness spectrum narcotic called Spice Melange.
Further Study: "Dune" by Frank Herbert