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Half-a-billion-year-old 'marine Roomba' is earliest known asymmetrical animal

Live Science
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80% Informative

The 555 million -year-old Quaestio simpsonorum is the earliest known animal to show evidence of an asymmetrical body.

It lived over half a billion years ago in what is now the Australian outback.

The animal's asymmetry would have been a groundbreaking evolutionary trait during the Ediacaran period.