Wrigglers were an amphibious species native to Drongar. The average size was about five meters long and half a meter thick, making them the largest of all known land-based lifeforms on that world. The creatures' cilia could deliver an electrostatic charge that was powerful enough to knock a grown Human off his feet. Like other Drongar lifeforms, they were invertebrates.
They were eaten by the Republic forces stationed on Drongar during the Clone Wars, and, seared in redfruit juice and sprinkled with fried fire gnats, made a tasty meal, somewhat reminiscent of fleek eel.