This undated image courtesy of The Australian National University shows a Dickinsonia fossil from the White Sea area of Russia. Photo: Agence France-Presse

Fossilised fat reveals mysterious Dickinsonia blobs to be earliest known animal, dating back 558 million years

Molecules of cholesterol appear to have solved the puzzle surrounding the strange organisms

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This undated image courtesy of The Australian National University shows a Dickinsonia fossil from the White Sea area of Russia. Photo: Agence France-Presse
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