National Geographic Specials1979Season 15 · 1979 · 4 episodesEpisodes1Gold!Shows how gold is mined and how it affects our lives.2Hong Kong: A Family Portrait3Last Stand in EdenShows how drought, poachers, and conflict have forced the elephants of east Africa to migrate.4The Tigris Expedition: In Search of Our BeginningsFollows explorer Thor Heyerdahl's crew as they sail their reed boat over routes believed to have been followed by Sumerian traders 5000 years ago.Season 7Season 8Season 9Season 10Season 11Season 12Season 13Season 14Season 16Season 17Season 18Season 19Season 20Season 21Season 22Season 23Season 24Season 25Season 26Season 27Season 28Season 29Season 30Season 31Season 32Season 33Season 34Season 35Season 45
