Final answer:
General Grievous hunches over due to his mechanical body and the way it is designed.
Step-by-step explanation:
General Grievous, a character from the Star Wars franchise, hunches over due to his mechanical body and the way it is designed. The character is depicted as a cyborg with multiple robotic limbs and a mechanical chest cavity, which causes him to have a hunched posture. His hunching over is a visual representation of his physical transformation and the toll it has taken on his body.
For example, in the Star Wars: Clone Wars animated series, it is explained that General Grievous underwent extensive cybernetic enhancement after a near-fatal accident, resulting in his current hunched appearance.