Scientists have not found a fossilized body of the species that is the common ancestor of all bilaterally symmetrical animals.What is the likelihood that they will do so? How have scientists been able to learn about this common ancestor?

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The Answer of Scientists have not found a fossilized body of the species that is the common ancestor of all bilaterally symmetrical animals.What is the likelihood that they will do so? How have scientists been able to learn about this common ancestor?

Scientists Have Not Found a Fossilized Body of the Species