Re: List of african american inventions. Oh and to the IGNORANT FUCK that gave me some ridiculously illiterate negative karma-if you don't like my opinions, then come out and debate me in the open, don't hide behind anonymity.
Nevertheless, most scientists hold that the first organisms on Earth were much like bacteria of today. But several features of the biochemistry of life suggest that bacteria arenât so ancient after all. In fact, in some respects, the cells of our own bodies tell us more about the evolution of life than bacteria do.
Indeed, some scientists think life appeared the moment our planet's environment was stable enough to support it. The earliest evidence for life on Earth comes from fossilized mats of cyanobacteria called stromatolites in Australia that are about 3.4 billion years old.