Rare event: There are several organs in our body that seem to have reduced in their presentation over time as no longer necessary to human survival. All developing embyos go thru a tail stage and most then absorb it back. I reviewed this article and think it will help answer your questions. https://en.wikipedia.org/wiki/Human_vestigiality
Answered 7/7/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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