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Originally Posted by Flaming Homer
Well if the planet is earth-like how could they be anything else?
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What would have happened on Earth if the asteroid didn't wipe out the dinosaurs 65 million years ago? (assuming that theory is correct.) It was the fact that small mammals like rodents were allowed to flourish that brought about larger mammals.
Who is to say that on another Earth like planet the dinosaurs would have been wiped out?
Besides, if we do encounter another civilization, we would just follow The Prime Directive. (duh- don't you watch Star Trek?)