Deep Sea Creatures Climb Up Every Night

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No AI is used in this documentary. So enjoy knowing you're watching real content, by real storytellers and scientists!

Why do millions of sea creatures rise every night? What drives this nightly pulse from the deep? And how did sonar reveal the ocean’s greatest hidden migration?

Narrated by the fantastic Steve Taylor, a real voice you may find familiar! This is not an AI voice.

And with Leo Richards from ‪@NaturalWorldFacts‬ a co-producer, working to make these episodes beautiful, yet deeply scientific.

Relax, enjoy, and learn about the Deep Sea!

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00:00 - The Deep Rises
01:46 - When the Depths Awaken - Diel Vertical Migration
04:41 - The Discovery of the Ascent
08:56 - How Nightly Migrations Shape Life
16:08 - Into the Darkness: A Copepod’s Perilous Voyage
20:05 - Barriers in the Abyss
22:34 - Hunters in the Dark
31:07 - Other Nightly Migrators
42:05 - The Secret Pathways: How Creatures Ascend
57:53 - The Endless Rising: Why the Deep Still Calls

We hope you enjoyed this episode with Steve Taylor as voiceover! Over the next weeks, we're releasing new episodes with Steve, the incredible voiceover of another science channel, Kurzgesagt. Relax, enjoy, and learn about the Deep Sea!

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Auralis is co-founded by Oliver Gilpin and Leo Richards of NaturalWorldFacts. It was formerly branded Life & The Earth / Oceans, but changed in October 2025.

Production Credits:

Co-Producer & Advisor: Leo Richards
Creative Director: Matt Revello
Video Editor: Jonathan Calle
Sound Designer: Camila Falon
Thumbnail Artist: Matt Revello
Script Writer: Fayth Tan
Script Editor: Emily Zhang, Mariel Denise Chan and Sol Gilpin.
Researcher and Accuracy Reviewer: Upendra Dassanayake
Graphic & Motion Designer: Thales Menezes
Voiceover: Steve Taylor (the fantastic VO of Kurzgesagt, not an AI!)
Production management by Matt Revello, Angel Herrera & Oliver Gilpin.

Footage taken from paid stocks and such as Artlist, Storyblocks and open sources such as Wikimedia Commons under CC licenses, as well as material kindly provided by NOAA (National Oceanic and Atmospheric Administration), to whom we extend our gratitude.