Being from Kansas issues about Evolution are commonly on my mind. Not because I really have any doubts that evolution works or that statements like "God put the dinosaur fossils in the earth to test our faith" to be absurd... But mostly because its facinating. On one level it obvious that the creatures of the Earth of closely related and yet on another level the mechanic of evolution (slight variations over millions of years) seems not quite right. I don't have the answer, but I do have a concept... The condition of DNA replication is the lifeform itself not the individual species that use it.
All living things on this planet have DNA and cellular structure that replicates to create larger organism with traits and abilities... DNA is therefore highly adaptable. Inside DNA is all the complexity of all life. The codes to everything are contained within. DNA itself is a mechanism to create our type of life. DNA can survive in a multitude of forms.
I imagine then that the whole Earth is common DNA organism of many parts and the instict to survive goes beyond each species but to the whole survival of DNA. For as long as there is a single replicating strand... life could conceivable repopulate an entire planet. Perhaps someday our planet will be smashed by rock large enough to shatter the world and piece of our world will spin off to then someday smash in to another warm rock. Will then we seed that world with our bacteria? Will that world grow to be not too much different than ours? Maybe it will be dogs that develop large brains and opposable thumbs, but regards our DNA will spread and follow similar design criteria... Maybe our world was seeded in the same way... and there are other planets out there with DNA based development. They will be grandly different, but I bet we will be shocked at the similarities.
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