The body of the mother-of-pearl moth caterpillar escapes predators by anchoring its tail, recoiling, and rolling backwards.

References

"The mother-of-pearl caterpillar, however, can step on the accelerator. If it meets a predator, it anchors its rear to the ground, recoils rapidly, and then rolls away backward like a bright-green tire. Mouth to tail, it completes around half a dozen revolutions during its escape. By turning into a wheel, the caterpillar moves some 40 times faster than its normal walking pace." (Downer 2002:22)

Book
Weird Nature: An Astonishing Exploration of Nature's Strangest BehaviorFebruary 3, 2002
John Downer

Organism
Mother Of PearlPleuroptya ruralisSpecies