30 Eyl 1990 · 53 dk.
Sharks, rays, squids and blue whales live in the Pacific Ocean off the California coast.
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30 Eyl 1990 · 53 dk.
Sharks, rays, squids and blue whales live in the Pacific Ocean off the California coast.
7 Eki 1990 · 53 dk.
Three species of monkeys, the muriqui, the golden lion tamarin and the buffy-headed marmoset struggle for survival in Brazil's coastal Atlantic Forest.
14 Eki 1990 · 53 dk.
A look at how Norway and Sweden are affected by eight months of winter.
21 Eki 1990 · 53 dk.
A look at the Swedish archipelago and Norway's fjords.
11 Kas 1990 · 53 dk.
Africa's spotted hyena is a matriarch dominated, efficient predator.
18 Kas 1990 · 53 dk.
Sight and sound are experienced through animal eyes and ears.
25 Kas 1990 · 53 dk.
Enhanced olfactory sensitivity; unique animal senses.
2 Ara 1990 · 53 dk.
Internal clocks guide life rhythms of eating, sleeping, mating, hibernation, birth and death.
9 Ara 1990 · 53 dk.
This program travels to the island of Cayo Santiago off Puerto Rico to study the behavioral patterns of a colony of feral Rhesus Macaques.
16 Ara 1990 · 53 dk.
Rangers at Denali National Park in Alaska train hikers for planned encounters with grizzlies; Alaskan grizzly bears are seen salmon fishing at Brooks Falls.
13 Oca 1991 · 53 dk.
Penguins, maras, guanacos, sea lions and killer whales highlight this portrait of Patagonia.
17 Şub 1991 · 53 dk.
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.
24 Şub 1991 · 53 dk.
The beauty of the African plains and the effects of tourism on the area.
3 Mar 1991 · 53 dk.
Filmmaker Simon Trevor, a former game warden, records the decimation of African elephants.
10 Mar 1991 · 53 dk.
The natural and human history of the Grand Tetons and Jackson Hole, Wyoming.
17 Mar 1991 · 53 dk.
Life within a close-knit golden jackal family on the plains of Lemuta in Africa.
24 Mar 1991 · 53 dk.
Biologist Lynn Rogers follows the black bear out of hibernation and into the Minnesota woods.
7 Nis 1991 · 53 dk.
The relationship within a wild dog pack on Africa's Serengeti Plains.
14 Nis 1991 · 53 dk.
A profile of the albatross examines its traits and habitats, as well as the mysteries and myths surrounding it.
28 Nis 1991 · 53 dk.
A polecat winters at a working farm in Wales, along with scavenging foxes, rats and birds.
12 May 1991 · 53 dk.
Grizzlies, wolves and cougars roam Montana's rugged, pristine Glacier National Park.
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