Biogenesis is the derivation of life from reproduction. This was presumably preceded by abiogenesis, and once the Earth's atmosphere assumed its composition today, abiogenesis would have become ...

Here is a list (in no particular order) of seven existing theories for this initial abiogenesis, and an exciting new one. Fir the purposes of this article, we are looking at how life developed on ...

Following the theory of abiogenesis, scientists propose life may have begun from nonliving matter. But how this process actually occurred is subject to much scientific debate.