Changing SeasSeason 174 episodesEpisodes1The Elephant Seals of Año Nuevo2Mystery of the Spinning Fish3Whales in a Plastic Ocean4Costa Rica's Surfing ParadiseSeason 1Season 2Season 3Season 4Season 5Season 6Season 7Season 8Season 9Season 10Season 11Season 12Season 13Season 14Season 15Season 16Season 18
