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Message: <blockquote data-quote="MoonSong" data-source="post: 7766468" data-attributes="member: 6689464">Obviously they should take more, but don't forget that they had extinctions overnight due to problems with the atmosphere, they had a lot of problems with oxygen levels. If something like that happens again in Mars it will kill all of the pollinators again it doesn't matter if they are few or a plenty. I wonder if the self-sufficiency and the constant influxes of fresh air are somehow connected.I'm not sure about the first one, the bigger problem with Mars' atmosphere is not the mass of the planet, it is the lack of a magnetosphere. Without one the solar wind just chips away at the atmosphere with impunity. And the second one, from what I understand is simply because all living things so far on Earth share the same biological mechanisms, the same codon sizes, the same codon-to-aminoacid sequences -I'm not a biologist or a chemist, but from what I understand there's no chemical reason these should be unique-, the same kind and number of nucelotids. If we all come from two or more different sources, them being identical would be quite a long shot. The system of gene transcription that we use was but one possibility, there would also be other systems on living beings somewhere on Earth.</blockquote>