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Abyssopelagic Zone
Abyssal Plain
The vast flat regions of the deep sea floor - 4,000-6,000 m deep and covering more of Earth's surface than all continents combined.
Depth: 3,000-6,000m Light: None
📖 Overview
Abyssal plains are the largest, least-explored habitat on Earth. Sparse life includes rat-tail fish, sea cucumbers, and specialized bacteria. They receive nutrients only from "marine snow" - decaying organic matter drifting down from surface productivity.