The real paleo diet: researchers find traces of world’s oldest meal in 550m-year-old fossil

Remains of slug-like Ediacaran animal Kimberella contain compounds suggesting it had a gut and ate bacteria and algae from the ocean floor

The ancient dietary habits of Earth’s oldest animals, which lived more than 550m years ago, have been uncovered by an international team of researchers.

Scientists who have analysed ancient fossils of Ediacaran biota – life forms that existed between 538.8m and 635m years ago – say they represent the earliest evidence of food consumed by animals.

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