EnvironmentCommon dolphins may finally be returning to the Adriatic sea The common dolphin (Delphinus delphis) was regionally extinct in the Adriatic Sea for 40 years, but there now appear to be four individuals living in the region 51¶¯Âþ
LifeLeonardo da Vinci saw a whale fossil that opened his mind to deep time Renaissance-era polymath Leonardo da Vinci may have seen a whale fossil in his youth, prompting him to speculate that Earth was enormously old 51¶¯Âþ