Skip to main content

Up Next

Phoenix Temple

Phoenix Temple

Season 1 Episode 4
52:55
Ash Runners

Ash Runners

Season 1 Episode 5
52:54
Pioneers of the Deep

Pioneers of the Deep

Season 1 Episode 6
52:55
Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
Life on Fire

The Surprise Salmon

Season 1 Episode 3

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.

Support Provided By