1 - 1The Infinite Variety Jan. 16, 1979
1 - 2Building Bodies Jan. 23, 1979
1 - 3The First Forests Jan. 30, 1979
1 - 4The Swarming Hordes Feb. 06, 1979
1 - 5Conquest of the Waters Feb. 13, 1979
1 - 6Invasion of the Land Feb. 20, 1979
1 - 7Victors of the Dry Land Feb. 27, 1979
1 - 8Lords of the Air Mar. 06, 1979
1 - 9The Rise of the Mammals Mar. 13, 1979
1 - 10Theme and Variations Mar. 20, 1979
1 - 11The Hunters and Hunted Mar. 27, 1979
1 - 12Life in the Trees Apr. 03, 1979
1 - 13The Compulsive Communicators Apr. 10, 1979