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Message: <blockquote data-quote="Umbran" data-source="post: 7766414" data-attributes="member: 177">Yep.  I made that point several pages back.So, a few hundreds of times longer than we have had civilization?  This is supposed to be a criticism?Why do they die?  Up to the point that you know their wild population is stable, you're keeping breeding populations in captivity on the side, to repopulate the species.  You've been working out their needs in enclosed spaces (which you need to support the people until terraforming is done anyway) gradually moving them over to Mars surface conditions over the generations.Dude, bugs and seeds are lightweight - way lighter than humans!  We can transport enough seeds to comprise a viable breeding population of pretty much any plant you can name in a sack that weighs less than a single human.  Bees are hardly big compared to, say, you.  Add whatever technology comes along after CRISPR, and biodiversity won't really be the issue.There are big questions around terraforming, but getting the plants and bugs isn't the hard part.  The hard part is understanding medium and long term atmosphere and climate dynamics.</blockquote>