Quote:
Originally Posted by michael.kickass
Why not? Stromatolites were the dominant form of live on Earth for over 4 billion years and their environment did change since then. However, stromatolites have remained the same anyway. Fortunately for all complex life forms something happened that forced evolution to take a leap forward.
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don't get me wrong, I *think* I understand how rare life is, but surviving 5 mass extinction events and evolving is crazy enough, to survive all those with absolutely zero evolution is truly astounding !!