Aired: 9/30/1990
Sharks, rays, squids and blue whales live in the Pacific Ocean off the California coast.
Aired: 10/7/1990
Three species of monkeys, the muriqui, the golden lion tamarin and the buffy-headed marmoset struggle for survival in Brazil's coastal Atlantic Forest.
Aired: 10/14/1990
A look at how Norway and Sweden are affected by eight months of winter.
Aired: 10/21/1990
A look at the Swedish archipelago and Norway's fjords.
Aired: 11/11/1990
Africa's spotted hyena is a matriarch dominated, efficient predator.
Aired: 11/18/1990
Sight and sound are experienced through animal eyes and ears.
Aired: 11/25/1990
Enhanced olfactory sensitivity; unique animal senses.
Aired: 12/2/1990
Internal clocks guide life rhythms of eating, sleeping, mating, hibernation, birth and death.
Aired: 12/9/1990
This program travels to the island of Cayo Santiago off Puerto Rico to study the behavioral patterns of a colony of feral Rhesus Macaques.
Aired: 12/16/1990
Rangers at Denali National Park in Alaska train hikers for planned encounters with grizzlies; Alaskan grizzly bears are seen salmon fishing at Brooks Falls.
Aired: 1/13/1991
Penguins, maras, guanacos, sea lions and killer whales highlight this portrait of Patagonia.
Aired: 2/17/1991
In light of the Persian Gulf War and the recent oil spills, PBS airs an update of the 1984 episode of Nature, Treasures of the Gulf, that focused on the effects of the Iran-Iraq war on the fragile ecology of the Persian Gulf.
Aired: 2/24/1991
The beauty of the African plains and the effects of tourism on the area.
Aired: 3/3/1991
Filmmaker Simon Trevor, a former game warden, records the decimation of African elephants.
Aired: 3/10/1991
The natural and human history of the Grand Tetons and Jackson Hole, Wyoming.
Aired: 3/17/1991
Life within a close-knit golden jackal family on the plains of Lemuta in Africa.
Aired: 3/24/1991
Biologist Lynn Rogers follows the black bear out of hibernation and into the Minnesota woods.
Aired: 4/7/1991
The relationship within a wild dog pack on Africa's Serengeti Plains.
Aired: 4/14/1991
A profile of the albatross examines its traits and habitats, as well as the mysteries and myths surrounding it.
Aired: 4/28/1991
A polecat winters at a working farm in Wales, along with scavenging foxes, rats and birds.
Aired: 5/12/1991
Grizzlies, wolves and cougars roam Montana's rugged, pristine Glacier National Park.
