Then you get back to every other response on this thread, it probably did happen more than once.
Comment on If conditions on earth are perfect for life to form shouldn't have happened more than once?
Artisian@lemmy.world 2 days agoI think OP’s question still holds, even if you think all of that happened. If there was so much life on mars and so much ejecta, why didn’t multiple (differently structured, eg not DNA) rounds of life get formed on mars and transplanted to earth? Why 1x?
Corkyskog@sh.itjust.works 2 days ago
MotoAsh@lemmy.world 2 days ago
Mitochondria don’t use DNA, so that particular detail has already been confirmed.
meekah@gehirneimer.de 2 days ago
We can't know that didn't happen. We just know that only one life form succeeded, it is very possible that others were pushed to extinction because of that.