Scientists estimate that the earliest biological entities began to appear on Earth more than 4 billion years ago.
“There was a sort of primordial soup from which certain organic molecules were formed. These were precursors to RNA and DNA,” carbon-containing molecules which combined and organized themselves into a sequence of biological reactions, said computational biologist Karthik Anantharaman from the University of Wisconsin-Madison. These first microbes would have been extremely simple.
But were they viruses or bacteria? Scientists don’t have a conclusive answer, partly because it’s difficult to recreate more than 4 billion years of evolution.
“Writer Fuel” is a series of cool real-world stories that might inspire your little writer heart. Check out our Writer Fuel page on the LimFic blog for more inspiration.
