What if? (religious reaction to extraterrestrial life)

I think they'd adamantly claim that it was contamination from one of our probes. They'd claim that was proof that it took intelligence to create life.

Tardigrades could, I think. If what they say about them is true.

The discovery that the offspring of organisms bear no similarity to their parents genetically. That would more or less disprove evolution, I think...

Yes. That would probably disprove evolution. It certainly would require a major new theory if bears regularly gave rise to gorillas. Well, consider what the theory says. It says that, since genotype affects phenotype, and environment selects phenotypes, then an organism's genome will tend to change in response to environment. You could disprove that by observing that genotype has no relation to phenotype, or that natural selection doesn't ever happen, or that organisms don't pass on genes to their offspring, or any number of other observations.Don't mistake a theory that hasn't been falsified yet for one that isn't falsifiable. There are conceiveable situations that could prove evolution false. It's just that none of them ever occur. Totally dissimilar. No shared genes whatsoever. That would disprove evolution.

Right, because that's how science works - we propose natural explanations for natural phenomenon. That's the scientific methodology, and that's what scientists do when observation contradicts their models - they make new, better models. Evolution is not the position that God didn't create organisms. It's the position that the diversity of life on earth is the result of random mutation and natural selection.A bear giving rise to a gorilla in one generation disproves that. It doesn't disprove that natural explanations can't account for natural phenomenon, and it certainly doesn't prove that the God of the Bible exists.If you want God to be included in a scientific theory, then you're going to have to prove that God exists and is avaliable to scientific examination. Otherwise no scientific model can ever be expected to take God into account.