Clams feed off Earth's mantle near deep, low-temperature vents

The video explores the Earth's mantle and the Mariotta Trench, focusing on clams living at depths of 5600 meters near low temperature vents. It explains the process of serpentinization, where mantle rock reacts with water to produce hydrogen and methane. The clams feed on hydrogen sulfide, which is generated through chemical reactions involving methane.

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