Re: Curious were did the sand worms come from in dune
No it's true they're not native to Arrakis. The books mention it was a watery world, to which the sandtrout (a phase in the life of sandworms) were introduced. They link to create giant cysterns that cordon off water, which then participates in the creation of spice.
Ee'd plebnista, norkohn forkohn perfectunun