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Surprising Symmetries

Curious Cases

CHAPTER

How Long Ago Were We Talking About?

The first bylaturaly symmetrical organism, but almost certainly af beina, small whit, flat worm like animal. We don't know how long ago it was because things like that thatre small and soft and squishy don't really fossilize them. Odoti: "We're talk at least 560 million years ago, some time back in the cambrian"

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