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Palaeontology

Breathing room for early animals

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Animals originated in a world with marine oxygen levels only a fraction of those found in today's oceans. Observations of microbial habitats in present-day lagoons suggest that early animals could have found refuge in oxygen-producing mats.

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Figure 1: Parallel motion.

MURRAY GINGRAS

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Correspondence to Jake Bailey.

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Bailey, J. Breathing room for early animals. Nature Geosci 4, 354–355 (2011). https://doi.org/10.1038/ngeo1170

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