The sandworms of Dune have more than earned their spot atop the pantheon of iconic sci-fi creatures. Dune author Frank Herbert’s gargantuan autotrophs have served as the blueprint for generations of other monster designs, like Beetlejuice’s sandworm, the tunneling graboids from Tremors, and at least two Star Wars creatures. Though the sandworm is inspired, plotwise, by dragons, part of its …