And the first animal on Earth was a...

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The evolutionary history of the comb jelly has revealed surprising clues about Earths first animal. Credit: Casey Dunn
The evolutionary history of the comb jelly has revealed surprising clues about Earth's first animal. Credit: Casey Dunn

A new study mapping the evolutionary history of animals indicates that Earth's first animal--a mysterious creature whose characteristics can only be inferred from fossils and studies of living animals--was probably significantly more complex than previously believed.


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