Primeval Whirl is a steel wild mouse roller coaster at Disney's Animal Kingdom at the Walt Disney World Resort. The ride is an "off the shelf" spinning roller coaster purchased from Reverchon Industries. The ride is part of Chester and Hester's Dino-Rama, which is itself part of DinoLand U.S.A. It is a roller coaster in the "Mild But Wild Thrills" category. It has cars that spin in circles while traveling on tracks, permitting the ride experience to vary greatly each time it is ridden.