Thousands of never-before-seen microbe species have been found in the deepest point of the world's oceans, the Mariana Trench ...
A Chinese deep-sea expedition to the Mariana Trench has uncovered an astonishing array of life forms thriving at depths once ...
Ocean depth is divided into zones: littoral, bathyal, abyssal and hadal. The deepest part of the ocean, the hadal zone, is anywhere deeper than six kilometres. What is the average depth of the ocean?