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Biogeochemistry

Food for early animal evolution

A revised timeline for when algae became ecologically important among plankton in the ancient oceans reveals a link between chemical changes in those waters and the emergence of animals in marine ecosystems. See Letter p.578

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Figure 1: The rise of algae.

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Correspondence to Andrew H. Knoll.

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Knoll, A. Food for early animal evolution. Nature 548, 528–530 (2017). https://doi.org/10.1038/nature23539

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