A New Study Suggests There Could Have Been Intelligent Life on Earth Before Humans

Published this month in the International Journal of Astrobiology, the work outlines what kind of signature a technologically adept species might leave behind. Schmidt and Frank use the projected footprint of the Anthropocene, the current era in which human activity is influencing planetary processes like climate and biodiversity, as a guide for what we might expect from other civilizations.

Source: vice.com