How does a decapod use a tail flip to escape danger?

Decapods, which are a group of crustaceans including shrimp and crayfish, utilize a rapid "tail-flip" as an effective escape reaction when threatened by a predator.123

This movement is a sudden, explosive backward propulsion generated by the animal's tail fan, which consists of the telson and paired uropods. By forcefully flexing its abdomen, the decapod can propel itself away from danger with great speed. This reflex is often initiated by giant nerve fibers, which allow for the rapid conduction of signals required to trigger such an immediate response. This explosive onset of movement is a common avoidance behavior among various invertebrates, helping them to escape predators by making their movements difficult to predict.132