Over 99% of Earth's Habitable Space Resides in the Ocean

The vast volume of Earth's oceans, from the surface to the deepest trenches, provides an immense three-dimensional habitat. This incredible aquatic realm supports the majority of the planet's biodiversity, making it the largest living space.

Source

https://education.nationalgeographic.org/resource/ocean-habitat/

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Published: March 29, 2026
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Earth Ocean Biology Ecology Habitat Biodiversity Marine Life Deep Sea Ecosystems

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