The Silurian Hypothesis: Could An Advanced Civilization Have Lived On Earth Millions Of Years Before Humans? If a technologically advanced species existed on Earth before us, they may have left a ...

Archaeologists and scientists continue to debate whether humans were truly the first advanced civilization on Earth.

That meant asking whether any industrial civilization that rises on any planet will, through their own activity, trigger their own version of a climate shift.

The Silurian Hypothesis: Might Earth Have Hosted A Sophisticated Civilization Millions Of Years Before Our Existence? If a technologically advanced species existed on Earth before us, they may ...

If humans went extinct today, Frank says, any future civilization that might arise on Earth millions of years hence might find it hard to recognize traces of human civilization.