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Mystery of the Spinning Fish

Between late 2023 and the spring of 2024 more than 80 species of fish were observed spinning in the Florida Keys. While most were able to recover, a large number of endangered smalltooth sawfish died. A group of multidisciplinary scientists is trying to piece together what happened in the environment to cause this unusual phenomenon.
Season 17 Episode 1703 Length 26:42 Premiere: 11/01/25

Changing Seas

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Season 17 Episodes

The Elephant Seals of Año Nuevo
S17 E1704 Length 26:42 Premiere Date 11/01/25

Mystery of the Spinning Fish
S17 E1703 Length 26:42 Premiere Date 11/01/25

Whales in a Plastic Ocean
S17 E1702 Length 26:46 Premiere Date 11/01/25

Costa Rica's Surfing Paradise
S17 E1701 Length 26:46 Premiere Date 11/01/25

Costa Rica's Surfing Paradise | Changing Seas | Preview
Preview Length 04:54 Premiere Date 06/24/25

Whales in a Plastic Ocean | Changing Seas | Preview
Preview Length 02:59 Premiere Date 06/24/25

Mystery of the Spinning Fish | Changing Seas | Preview
Preview Length 04:11 Premiere Date 06/24/25

The Elephant Seals of Año Nuevo | Changing Seas | Preview
Preview Length 04:43 Premiere Date 06/24/25

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Sharks in Belize: Jaguars of the Sea - S15 E2

Catching and tagging sharks along the Belize Barrier Reef, local fishers leverage their generational knowledge to help marine scientists and fisheries managers keep shark populations healthy for all.

  • Thursday March 5, 2026 11:30 am ET on KET2
  • Thursday March 5, 2026 10:30 am CT on KET2

Bermuda: Life at Ocean's Edge - S15 E3

Bermuda's reefs offer clues to protect the islands from the accelerating impacts of a changing climate.

  • Thursday March 12, 2026 11:30 am ET on KET2
  • Thursday March 12, 2026 10:30 am CT on KET2

Life in the Dark: The Polar Night - S15 E4

At the northernmost research station in the world, scientists brave the cold and darkness to understand how some of the tiniest animals survive at a time of year when their main food source is not available.

  • Thursday March 19, 2026 11:30 am ET on KET2
  • Thursday March 19, 2026 10:30 am CT on KET2

Ancient Adriatic: Croatia's Sunken History - S16 E1

Marine archaeologists uncover a Roman shipwreck on Croatia's Adriatic Coast.

  • Thursday March 26, 2026 11:30 am ET on KET2
  • Thursday March 26, 2026 10:30 am CT on KET2
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Life in the Dark: The Polar Night - S15 E4

  • Thursday February 19, 2026 11:30 am ET on KET2
  • Thursday February 19, 2026 10:30 am CT on KET2

Bermuda: Life at Ocean's Edge - S15 E3

  • Thursday February 12, 2026 11:30 am ET on KET2
  • Thursday February 12, 2026 10:30 am CT on KET2

Sharks in Belize: Jaguars of the Sea - S15 E2

  • Thursday February 5, 2026 11:30 am ET on KET2
  • Thursday February 5, 2026 10:30 am CT on KET2

Mollusks: More Than a Shell - S15 E1

  • Thursday February 26, 2026 11:30 am ET on KET2
  • Thursday February 26, 2026 10:30 am CT on KET2
  • Thursday January 29, 2026 11:30 am ET on KET2
  • Thursday January 29, 2026 10:30 am CT on KET2
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