PBS Nature schedule

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Underwater filmmakers Howard and Michele Hall go diving 300 miles off the coast of Central America.

Marlin, sailfish, spearfish and swordfish are the largest and most highly prized of all game fish.

The relationship between humans and dolphins is examined, including efforts to communicate and the effect of captivity.

Some 30,000 animals and plants live in replicated ocean environments at Monterey Bay Aquarium.

Horseshoe crab numbers drop as their use as bait by the fishing industry increases.

The fur trade continues to threaten the South American otter, despite its status as an endangered species.

Ranchers and scientists practice conservation in Venezuelan and Colombian grasslands to protect native animals.

The story of a young journalist and an orphaned sloth that she fostered for two years before sending it back to the wild.

Examples of how the rain forest acts as an engine of evolution.

The history of a giant Brazil nut tree in a Peruvian jungle; British tarantula expert; rainfall generated by the trees.

Researchers and filmmakers set out to produce the first comprehensive film chronicle of the jaguar.

Theories suggest how animals first migrated to the Galapagos Islands and how adaptation resulted in new species.

A variety of marine life thrives in and about the cold waters surrounding the Galápagos Islands.

Plentiful fish draw birds to the Galápagos Islands; man's actions, past and present, affect wildlife.

A crew chronicles the process of wildlife filmmaking during a three-year study of the Galápagos Islands.

Unique animals and plants flourish atop mist-shrouded Venezuelan plateaus thousands of feet above the surrounding jungle.

Madagascar tries to protect its ecosystem while preserving Malagasy traditions that harm it.

Chimpanzees and other primates survive on Tiwai, an Upper Guinea island where witchcraft and taboos exist today.

An exploration of the hearts, minds and souls of elephants.

Life in the Kalahari Desert includes butterflies, termites, locusts, quelea birds and bullfrogs.

The Kalahari Desert's Okavango Delta from the point of view of crocodiles and eagles.

An examination of the diverse plants and animals that have adapted to the harsh environment of the Kalahari Desert in South Africa.

Searching for elusive Siberian tigers in remote Russia.

The survival of animals in the Keoladeo National Park of northern India, where widespread drought is brought on every 20 to 30 years by the lack of monsoon rains.

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