[onedoug]

Personally, I think that Earth life began here. Yet even were it true that life began elsewhere, we’d still be compelled to ask, how and why? But I don’t doubt that the chemistry for life is ubiquitous and that at least “simple” biology could be too.

[muawiyah]

The first flaw in Darwinian Evolution is the postulate that we have a common ancestor.

Actually, we don't need to have a common ancestor if life spirals in from outerspace in all directions all the time.

[Mister Da]

I agree life could appear in many different places. If so, & with the revelation that life can survive space, Earth may be colonized by native species as well as alien species. There may have been interbreeding. Perhaps plants or animals, which are fundamentally different, are alien, while the other is native.

Life surviving the vacuum of space is a big thing!