

Alkanes, from the possible breakdown of fatty-acids, in distant past…
To me, the question then becomes … is there any nonbiological-method for Mars to have produced those molecules?
IF so, THEN … probably that’s how they got there…
but without knowing the answer to that question…
it isn’t decided, is it?
I’d read, years ago, in the science news-headlines sites, that someone had cracked Colony Collapse Disorder:
They’d said that in ALL the hives which didn’t have CCD, there was never the coincidence of both a specific virus and a specific fungus, infecting them.
They’d said that in all the hives which did have CCD, both that specific virus & that specific fungus were in-play.
Apparently, to them, the infection of both of those specific-pathogens, meant that their immune-systems were defeated, & everything else got them, then.
Since I can’t find that article, here’s a different article which identifies some specific pathogen, which I hope includes both the specific-virus & specific-fungus that the other researchers had found to be the culprit:
https://beeprofessor.com/colony-collapse-disorder/