![]() ![]() This organism had the potential to reproduce by making copies of itself, just like bacteria, many amoebae, and our own living cells today. What we do know is that a living single-celled organism was present on Earth during the early stages of our planet’s existence. Scientists still study and debate how life came into being and whether it originated on Earth or in some other region of the universe (including some scientists who believe that studying evolution can reveal the complex processes that were set in motion by God or a higher power). It’s hard for us, with our typical human life spans of less than 100 years, to imagine all the way back, 3.8 billion years ago, to the origins of life.
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