Earth has hosted massive supermountains only twice in its entire history

When the Earth Had Supermountains · 10:51 · Video: PBS Eons · Watch at the source

In short: Supermountains are geological giants that existed for a tiny portion of Earth's timeline. This video explores how these rare formations emerged and why their brief existence appears linked to major evolutionary leaps in the history of life on our planet.

Supermountains are defined by their extreme scale, having formed only twice throughout deep time. These structures are not permanent features of the landscape, representing only a small fraction of Earth's total history.

The emergence of these formations is particularly significant because both instances coincide with profound shifts in biological evolution. By examining these rare geological events, researchers gain insight into how the physical structure of the planet has influenced the development of life.

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