Why Deep Sea Migration Gets Weirder the Closer You Look | For Sleep

Join Patreon to help us produce our real, human documentaries created without AI:   / auralisfilms   No AI is used in this documentary. So enjoy knowing you're watching real content, by real storytellers and scientists! ---------------------- 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 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? Relax, enjoy, and learn about the Deep Sea! 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! In case you are interested in helping us TRANSLATE our videos into other languages, by scripting, voiceover acting, or subtitling, please reach out! The people in your country should be able to access these nature documentaries, too! Contact us: auralis@telos.so ---------------------- 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. The real humans, who produced this episode: 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.