Video prompt: A group of penguins waddle across an Antarctic landscape, some sliding playfully on their bellies over the ice, against a backdrop of towering icy blue glaciers.
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: Carefully observe the penguin's feet; you can see they become distorted during movement.