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Post by hi224 on Aug 21, 2018 0:41:36 GMT
yep.
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Post by rizdek on Feb 2, 2019 1:02:43 GMT
I think most people, with any amount of intelligence, probably realize that the chance that we are the only living organisms in the vast cosmos of this Universe as pretty low........but if there is life on other planets, and we were someday to actually 'meet' them/it, how likely is it that we will both be the same (or similar) size? In other words, what guarantees are there that they won't be giants to us, or vice-versa ?? SAVE FERRISI am relatively certain that somewhere else in the universe there is life. I won't be surprised if they find evidence of primitive life existing now, or having existed in the past, elsewhere in the Solar System. But I'm not nearly so certain well developed life would be abundant...ie intelligent life throughout the universe. Perhaps one or two cases per galaxy, given the various precise conditions development to that level might require. IOW, I don't think it's JUST billions of years of a stable environment. I think development of higher life forms might require periodical partial dieoffs to give some life forms that might not have thrived under some conditions a chance to multiply and disperse. This site kind of discussed the role extinction level events might play in evolution. evolution.berkeley.edu/evolibrary/article/massextinct_04
But I am guessing that due to the ways matter and energy self-organize and the requirements living organisms have, that life on other planets/elsewhere in the universe will likely be about the same size as we see on earth...ranging from virus sized organisms to blue whales large trees. I can't envision anything smaller being able to "be" living. And it's hard to imagine anything getting much bigger than the sequoia or the blue whale given the cost of keeping a body of that mass nourished and structurally sound. We've seen how massive species have come and gone on earth...massive sharks, large dinosaurs, but now, the only large species are the whales and they seem to be able to grow larger because the water environment provides structural support and plenty of food, at least it has up to this point. But for some reason, no animal forms on earth have grown larger than the blue whale.
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