How is the efficient dietary processing of mules potentially linked to their commonly extended lifespan?

Answer

It suggests a reduced level of chronic metabolic stress placed upon their systems over many years.

The consistent, lower-calorie intake that results from their efficiency likely causes less systemic wear and tear compared to the higher metabolic load placed on horses constantly processing high-volume, high-energy diets.

How is the efficient dietary processing of mules potentially linked to their commonly extended lifespan?
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