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What if the most important life in the ocean is almost completely invisible?

In this episode of Naturally Scott, Scott Harris sits down with marine microbiologist Dr. Ginny Edgcomb of the Woods Hole Oceanographic Institution for a fascinating journey into the hidden world beneath the waves.

From hydrothermal vents and hypersaline lakes at the bottom of the Mediterranean to deep-sea drilling expeditions in the Indian Ocean, Ginny studies microscopic organisms that thrive where most life simply cannot. Along the way, she explains how these remarkable microbes recycle nutrients, fuel entire ocean ecosystems, and may even help scientists search for life beyond Earth.  

The conversation explores:

🔬 Why microbes are the foundation of nearly every marine food web

🌋 Hydrothermal vents and the extraordinary life they support

🧂 Mysterious hypersaline “lakes” hidden on the Mediterranean seafloor

🌍 What Earth’s most extreme environments can teach us about alien life

🚢 Life aboard research vessels—from flying fish and whales to pirate drills

🌊 How climate change is reshaping the world’s oceans

Equal parts adventure, exploration, and science, this episode reveals an unseen world that quietly supports nearly every living thing in the sea.

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