<P> According to the American Kennel Club (AKC) standard, male Neapolitan Mastiffs should measure 26--31 inches (66--79 cm) at the withers, weigh 130--155 pounds (60 - 70 kg), while females should measure 24--29 inches (61--74 cm) and weigh 110--130 pounds (50--60 kg). Body length should be 10--15% greater than height . </P> <P> The Neapolitan Mastiff is large and powerful . Their bodies are covered in loose skin with a coat that can either be black, blue, mahogany or tawny . </P> <P> The Neapolitan Mastiff is fearless and extremely protective of its home and family . They prefer to be with their family . The Neapolitan Mastiff rarely barks unless under provocation, renowned for sneaking up on intruders as opposed to first alerting them of its presence . </P> <P> Neapolitan Mastiffs, as a breed, are extremely intelligent dogs with a tendency to be independent thinkers . They learn quickly, which is both good and bad, since this guardian breed needs extensive proper socialization to learn to accept strangers, especially within the home; without proper early socialization and training, these dogs are likely to become aggressive towards strangers and unfamiliar dogs . </P>

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