Ocean trenches are Earth’s deepest habitats—and they’re full of life. This episode is a guided dive into the hadal zone (6,000–11,000 meters), where tectonic plates create steep trenches that plunge toward the mantle. Learn what trenches are geologically, what conditions are like at full ocean depth (cold, pressure, darkness), and why the deep sea isn’t a single ecosystem—each trench is its own world. You’ll also get myth-busting on how “the abyss” shows up in pop culture, plus an inside look at the technology that makes trench science possible: multibeam mapping, baited landers, and human-occupied submersibles. Finally, we explore the big research questions scientists are asking about biodiversity, evolution, and connectivity across the deepest ocean.
Support our science communication by joining us on Patreon or sending us a gift on PayPal
Special thanks to the Monterey Bay Aquarium for sponsoring this episode.
Episode Guest: Professor Alan Jamieson
Listen to the Deep Sea Podcast!
Browse Professor Jamieson’s publications on Google Scholar
Visit the Hadal Zone Deep Sea Research Center and follow their work on Instagram
Episode Transcript and more information on the Pine Forest Media website
Follow Pine Forest Media on Instagram @pineforestmedia
Hosted, produced, and edited by Clark Marchese
Cover art by Jomiro Eming
Theme music by Nela Ruiz
Find some more Pine Forest Media podcasts below
Listen to Plastic Podcast on Spotify or Apple Podcasts
Listen to South Pole on Spotify or Apple Podcasts
Listen to Something in the Water on Spotify or Apple Podcasts
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