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Originally posted by ChicUFO
reply to post by SaosinEngaged
I've thought about this often and I try to look at other possibilities as well. What if life is linear and evolution is destined? Some scientists believe that life here on Earth came here on an asteroid or meteor. If life came from space then it may always follow a certain path in evolution. No species in Earth history evolved the intelligence that humans have evolved. The dinosaurs were here for 250 million years without evolving the intelligence that we have evolved in 65 million years. Perhaps all life will go through a similar evolution from single celled organisms to mammals. Maybe, just maybe, only mammals have the genetics needed to evolve intelligence. Maybe all intelligent aliens are descended from mammals, they would be mammals that we can barley imagine but still descendants of mammals. That would explain why they all seem to have such "human" features.
Just a theory here.