This is a serious question, and serious scientists are speculating about what traces these potential predecessors might have left behind.
The post How Would We Know If Intelligent Life Existed on Earth Before Humans? appeared first on Scout SEO- Melbourne Internet Marketing.
from Innovation and Digital Marketing https://www.livescience.com/62338-intelligent-life-on-earth-before-humans.html?utm_source=rss&utm_medium=rss
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