What is the highest weight listed for a mature adult male Silverback in the summary metrics?
Answer
400 pounds
The data table summarizing physical metrics provides clear upper and lower bounds for mature male weights. The text indicates that mature males can weigh as much as 400 pounds. The summary table consolidates this information, showing the average weight range for an adult male (Silverback) spanning from 308 to 400 pounds, equating to 140 to 180 kilograms. Therefore, the maximum weight specifically cited for these powerful animals is 400 pounds.

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