Video prompt: A playful dolphin jumping out of the ocean water, splashing as it lands back into the waves.
Defect: Deformation (when Object is involved in an act,  anything in this process that's weird. e.g. people walk into a wall. "Walk" is an act)
Explanation: As the dolphin moves, its body undergoes unnatural deformations, creating an unrealistic effect, as its structure should remain stable during motion.