1. Snake River Birds of Prey - Part 1

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. 12 September 1976. 24 min

Along the Snake River in southwestern Idaho is the world's largest concentration of golden eagles and Prairie falcons. Marlin participates in the research and observations.

2. Snake River Birds of Prey - Part 2

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. 19 September 1976. 24 min

Again Marlin participates in the study of the golden eagle as it nests in the canyon cliffs and hunts for food in the plateaus.

3. Wild Shores of Patagonia

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. 17 October 1976. 24 min

Marlin and Dick Denney observe the wildlife along the shores of Argentina's Patagonia.

4. Land at River's End

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. 7 November 1976. 24 min

The U.S. Forest Service in Alaska and Dick Denney attempt to discover if the dusky Canada goose might be in jeopardy because of an earthquake, which occurred over a decade ago.

5. Day of the Lynx

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. 21 November 1976. 24 min

Filmed in the Canadian Rockies this is a species story dealing with a day in the life of a Canada lynx.

6. Realm of the Rhea

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. 19 December 1976. 24 min

Dick Denney and Dr. Bruning of the New York Zoological Society, "walk across the Pampas" and observe some of Argentina's most interesting bird life.

7. World of the Lapps - Part 1

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. 2 January 1977. 24 min

Part I shows the Norwegian natives and how they raise, herd and use their reindeer, which is the basis of their economy.

8. World of the Lapps - Part 2

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. 9 January 1977. 24 min

Part II concludes on how the Norwegian natives and how they raise, herd and use their reindeer, which is the basis of their economy.

9. Bear Cubs of Painted Canyon

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. 16 January 1977. 24 min

This is a look at the life of the wolf and the bobcat raising their families in the mountains of the Monti-LaSal National Forest located in southern Utah.

10. Chimpanzees of Tanzania

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. 13 February 1977. 24 min

Marlin journeys to Tanzania to observe primate research being conducted among the chimpanzees that live near the shores of vast Lake Tanganyika.

11. Exploring the Leewards

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. 27 February 1977. 24 min

Marlin travels to the Hawaiian Archipelago, Leeward Islands, to observe the activities of the sea birds, which live there.

12. Wild Dogs of the Serengeti

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. 20 March 1977. 24 min

Marlin Perkins joins a husband-wife scientific team in Tanzania, east Africa to observe their continuing five-year research into the life of the wild dog.