abiogenesis

1000	origin
358	hypotheses
348	hypothesis
348	explanations
326	evolution
325	theories
324	cosmology
322	extraterrestrial
319	primordial
314	explanation

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More distant neighbors

evolutionary cosmological organic universe organisms potential theory plausible genetic biological beings myth uncertain crust chemical reactions phenomena inorganic generation hypothetical postulated substance earth spontaneous cosmic meteorites matter tectonics planetary evidence dinosaurs suggests observable proponents proof gravitational derivation elemental occurred

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