Scientists have long theorized about the origins of life on Earth. But thanks to new research from England's University of Bristol, there are some new clues to factor into the question of how our world came to be.
For a long time, our best bet at figuring out when life developed on our home planet was to analyze fossils, the earliest of which gave us evidence of life as old as 4 billion years ago. But in a study published Monday in the journal Nature Ecology & Evolution, scientists posit that life may be up to hundreds of millions of years older than that.
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