Evolution of Hawaiian volcanoes went through the rejuvenated stage, while its younger neighbors, East Molokai and West Maui, have evidently done so. It is currently unknown what stage of development the submerged volcano of Penguin Bank is in. In recent years research at other seamounts, for instance Jasper Seamount, has confirmed that the Hawaiian model applies to other seamounts as well. Evolution of Hawaiian volcanoes The fifteen volcanoes that make up the eight principal islands of Hawaii are the youngest in a chain of more than 129 volcanoes that stretch across the North Pacific Ocean, called the Hawaiian-Emperor seamount chain. Hawaii's volcanoes rise an
Hawaiian monk seal its own, and returns to the sea to forage for the first time since the pup’s arrival. Most seals are found on the Northwestern Hawaiian Islands. The Hawaiian monk seal is endangered, although its cousin species the Mediterranean monk seal ("M. monachus") is even rarer, and the Caribbean monk seal ("M. tropicalis"), last sighted in the 1950s, was officially declared extinct in June 2008. The total population of Hawaiian monk seals is in decline - the larger population that inhabits the northwest islands is declining while the smaller population on the main Hawaiian Islands is increasing. In 2010, it was