DESCRIPTION: Named for its resemblance to a Catholic monk, the Hawaiian monk seal has folds around its neck and is gray in color, with pelage often turning brown from weathering. Adult females weigh ...

Hawaiian monk seals grow to be 6-7 feet long, weigh 400-600 pounds, and can live more than 30 years. Males and females are generally the same size — the only way to tell them apart is to look at ...