September 17, 1972 • 24m
Marlin and Tom Allen continue intensive studies with Canadian experts both on the surface and under frigid waters of the adult sea...Read more
October 15, 1972 • 24m
Marlin and Tom Allen join scientists doing shark research in an undersea laboratory in the Bahamian waters.
October 29, 1972 • 24m
The cheetah, leopard and lion, ever watchful of each other, are forced to share the same water hole during the dry season in Africa.
November 12, 1972 • 24m
We watch the exciting Australian gray kangaroo in the lofty eucalyptus forest along with the giant emus, smaller fowl, dingo, liza...Read more
December 3, 1972 • 24m
Marlin and Tom Allen join an Australian curator on an expedition to capture the most venomous snake in the world at night beneath ...Read more
December 17, 1972 • 24m
This hammock of the Florida Everglades is a small island of dry ground surrounded by boggy marshland which provides refuge and hab...Read more
January 7, 1973 • 24m
Marlin observes the great migrating herd of caribou being urged northward on a migratory cycle of life while scientists tag the an...Read more
January 28, 1973 • 24m
An African leopard maintains its domain in and around a kopje, which is a rocky outcropping providing the habitation for many smaller animals.
February 11, 1973 • 24m
Marlin joins Dr. Philip Kahl, ornithologist, in Kenya's great Rift Valley for close observations of bird life, particularly the in...Read more
February 25, 1973 • 24m
Seals occupying the Pacific Coastal Northwest including the largest of all pinnipeds, the enormous elephant seal, are under observ...Read more
March 11, 1973 • 24m
The largest land lizard in the world, the komodo dragon is found only on four small Indonesian Islands where we find Marlin in clo...Read more
March 25, 1973 • 24m
A careful scientific study of a unique species of monkey who lives under conditions of climate more harsh than those endured by an...Read more