What is the approximate mass range, in pounds, for an adult male Western Gorilla?
Answer
300 to 400 pounds.
Adult male Western Gorillas, or silverbacks, exhibit massive size when compared to females, displaying significant sexual dimorphism. Their typical weight range is documented as falling between 300 to 400 pounds, which corresponds to approximately 136 to 181 kilograms. This substantial mass contributes to their broad chest structure and powerful musculature, necessary for their roles within the group, such as asserting dominance or moving heavy vegetation. This weight range is substantially greater than that of the adult females.

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