The habits of the sea otter in water habitat of coastal waters from California to Alaska are observed.

Divers using special underwater propulsion devices move the search of the seldom seen angel shark with Marlin operating from a Marineland laboratory ship over head and using a box-cage resting on the ocean floor.

Marlin and crew show you the wide variety of interesting animal life living on the Galapagos Islands lying 600 miles west of the coast of Ecuador.

Marlin continues exploration by going underwater around the Galapagos observing the sea lions, crabs, marine iguanas, some shark and octopus specimens.

Marlin and scientist companion travel to Canada's Melville Island in the Artic Ocean to study musk oxen and Perry caribou by using helicopters and small planes to penetrate deep into the Canadian mainland.

Filmed in the western United States, this species story is told without humans, of the coyote, its habits and life history.

Filmed on location at Red Rock Lakes in Montana, this first program depicts beautiful trumpeter swans wintering on the lake and the observance and study of wintering animals on the shore including elk, moose, and coyotes.

This is the conclusion of the story of efforts being made to save the almost extinct trumpeter swans in Montana by stepping up winter feeding and capturing and banding while the birds are in molt and unable to fly.

Marlin Perkins travels to Rhodesia, Africa to make a behavioral study of the black-maned lion.

Marlin joins U.S. scientists in witnessing the training of sea lions, pilot whales and killer whales in doing emergency location work at great depths in the sea.

Marlin's crew treks to beautiful Okavango Swamp in Botswana, Africa to observe the graceful superb black and white fish eagles which reside there, their habits and habitat.

This is an exciting story of the capture of rare Persian Onager, the wild donkey of Iran with Marlin and his group using aircraft and land rovers in the chase.