Ancient fossils of the first ever organisms to exhibit movement have been discovered by an international team of scientists. Discovered in rocks in Gabon and 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 that moved through the mud in search of a more favourable environment. The team, which included experts from Cardiff University, state that the new discovery places the first ever evidence of mobility on Earth to more than 1.5 billion...
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