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Q&A

What is the smallest geological change possible to make human evolution untraceable?

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Human evolution has a reasonably complete fossil record pointing to the fact that we and apes evolved from a common ancestor within the last 10 million years or so. But I want a world where it could be reasonably assumed that humans were simply transplanted here, perhaps created or moved here by some aliens. In order for this to happen, there would have to be no fossil record that directly links us to an evolutionary ancestor. Other than the necessary changes, I want this alternate world to be as Earth-like as as possible.

What is the smallest change that would remove any evidence of human evolution from an ape-like ancestor?

In order for this to succeed, there can be some traces of recent human evolution (such as Neanderthals, perhaps) and some traces of earlier apes and primates, but a large enough gap in time leaving 'doubt' as to the origin of humanity.

For the purposes of this question, ignore any scientific ways of connecting humans to apes, other than fossil record. For example, ignore the similarity of human and ape DNA. Any fossil evidence must be very unlikely to be found by the time humanity has progressed to a technology level equivalent to today's.

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This post was sourced from https://worldbuilding.stackexchange.com/q/101709. It is licensed under CC BY-SA 3.0.

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