Ancient fossils of the first ever organisms to exhibit movement have been discovered in rocks in Gabon, dating back approximately 2.1 billion years. The fossils suggest the existence of a cluster of single cells that came together to form a slug-like multicellular organism.

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Ancient fossils of the first ever organisms to exhibit movement have been discovered in rocks in Gabon, dating back approximately 2.1 billion years. The fossils suggest the existence of a cluster of single cells that came together to form a slug-like multicellular organism.