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Life on Fire

The Surprise Salmon

Video duration: 52:54Video has closed captioning.

In Alaska, the fresh water that feeds the rivers is snowmelt from North America’s highest mountains and most active volcanoes. Time and again, they erupt and poison the rivers. Scientists have only just begun to piece together what might have happened nearly 2,000 years ago, when one race of salmon faced the death of their natal river and were forced back to the open ocean.

Episodes of Life on Fire2

Video thumbnail: Life on Fire Phoenix Temple

Life on Fire

Phoenix Temple

Witness nature’s struggles to conquer ash and lava before a volcano's next eruption.

52:55

Phoenix Temple

52:55

Video thumbnail: Life on Fire Icelandic Volcanoes

Life on Fire

Icelandic Volcanoes

Learn which Icelandic volcano may awaken next and what the consequences could be.

52:58

Icelandic Volcanoes

52:58

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Previews of Life on Fire7

Video thumbnail: Life on Fire Phoenix Temple - Preview

Life on Fire

Phoenix Temple - Preview

Witness nature’s struggles to conquer ash and lava before a volcano's next eruption.

0:30

Phoenix Temple - Preview

0:30

Video thumbnail: Life on Fire Volcano Doctors - Preview

Life on Fire

Volcano Doctors - Preview

Learn how volcanologists try to predict eruptions.

0:30

Volcano Doctors - Preview

0:30

Video thumbnail: Life on Fire Icelandic Volcanoes - Preview

Life on Fire

Icelandic Volcanoes - Preview

Learn which Icelandic volcano may awaken next and what the consequences could be.

0:30

Icelandic Volcanoes - Preview

0:30

Video thumbnail: Life on Fire Pioneers of the Deep - Preview

Life on Fire

Pioneers of the Deep - Preview

See how species have learned to cope with conditions in the Tongan archipelago.

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Pioneers of the Deep - Preview

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