A 520-million-year-old, 7.6-centimetre fossil has yielded evidence that complex brains evolved much earlier than previously thought, say scientists.
Source: http://www.cosmosmagazine.com/news/6055/spineless-critter-had-oldest-complex-brain
Elena Lyons Elisabeth Röhm Elisha Cuthbert Eliza Dushku Emilie de Ravin Emma Heming Emma Stone Emma Watson
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