Could Homo sapiens and an archaic and now-extinct species of early human have lived alongside each other on the Indonesian ...

Archaeologists excavating a paleolithic cave site in Galilee, Israel, have found evidence that a deep-cave compound at the site may have been used for ritualistic gatherings, according to a new paper ...

A deep excavation in Indonesia has uncovered evidence that modern humans and an older hominin species used the same cave, ...

Why it's incredible: The cave is so deep, the world's tallest building could fit inside it. The Hranice Abyss — or "Hranická propast," in Czech — is the deepest known freshwater cave in the world.

Beneath the Earth’s surface lies a world so extreme and isolated that it seems more like an alien planet than part of our own ...

At the mouth of a deep cave, an unusual sight greets visitors: sand pushed outward into a large mound. Strangely, even heavy ...

CEDAR FALLS, Iowa (KCRG) - A team of researchers at the University of Northern Iowa (UNI) is exploring some of the deepest caves in the country to learn more about life in extreme environments. The ...

(via MinuteEarth) Krubera Cave, one of our planet’s deepest known caves, extends 2200 meters into the earth – that’s a depth of nearly six Empire State Buildings. Or at least, that's as far down as ...

On Sunday’s episode of The Excerpt podcast: Hidden beneath Earth’s surface are caverns and pathways that hold the secrets of our planet’s very beginnings. Even after decades of exploration, there are ...