Quote:
Originally Posted by GodBeastX
Probably unrealistically? :) The chances two planets followed same evolution are probably astronomical if they produced life at all.
|
But don't at least half of all alien planets have at least vegetation that looks remarkably like the post-Columbian North American west? TV wouldn't lie to me.
In all honesty, we don't really know how similar the biospheres of alien planets are, or even if there *are* any alien biospheres in the first place. With no reality checks, whatever you do for defaults is basically a guess. Current guesses lean more toward they are so different your Earthly knowledge is useless being more likely than they are all exactly like Earth, but there's no actual evidence either way. If the theoretical xenobiologists whine too much, tell them OK *their* characters can buy the forms of the skills that have no cross-biosphere defaults.