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Tag, You're It: Tracking the Grand Canyon's Toughest Fish

Biologist Lindsay Hansen and her USGS team work day and night to study the federally threatened humpback chub in the Grand Canyon. Using PIT tags, they track fish growth and migration to understand how this resilient species adapts to cold dam flows and warming tributaries like the Little Colorado. Their efforts offer a glimpse of hope in an altered ecosystem.
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Clip Season 2 Episode 5 Length 04:35 Premiere: 07/23/25

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Season 2 Episodes

Vanishing Act
S2 E6 Length 55:39 Premiere Date 07/30/25

Dammed If You Do
S2 E5 Length 55:08 Premiere Date 07/23/25

The Honey Trap
S2 E4 Length 55:09 Premiere Date 07/16/25

Dressed to Kill
S2 E3 Length 55:09 Premiere Date 07/09/25

The Enemy of My Enemy
S2 E2 Length 55:13 Premiere Date 07/02/25

Shelf Life
S2 E1 Length 55:07 Premiere Date 06/25/25

Episode 5 Preview
Preview Length 00:30 Premiere Date 07/23/25

Vegas vs. the Desert: Plumbing the Impossible
Clip Length 11:19 Premiere Date 07/23/25

The Beach Boys Played Here. Now It’s a Toxic Dust Bowl.
Clip Length 05:13 Premiere Date 07/23/25

Reviving the River: Hope Returns to the Colorado Delta
Clip Length 04:59 Premiere Date 07/23/25

Tag, You're It: Tracking the Grand Canyon's Toughest Fish
Clip Length 04:35 Premiere Date 07/23/25

The Dam Truth: What Glen Canyon Tells Us About a Drying West
Clip Length 09:00 Premiere Date 07/23/25

Season 2 Preview
Preview Length 00:30 Premiere Date 06/25/25

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