Dune sandworms are real?

Apparently Mongolia should really be renamed to Dune. Many of it’s desert dwelling citizens are convinced that there is a big worm out there that will jump out of the sand that kills people by spitting acid and shooting lightning out of it’s rear. It’s also attracted to vibrations in sand. So, break out your thumpers are go hunt some meter-and-a-half long sand worms a.k.a. Mongolian death worm