An anonymous reader writes: A large, international team of researchers has completed the full sequencing of the octopus genome. "The researchers discovered striking differences between the genomes of the octopus and other invertebrates, including widespread rearrangements of genes and a dramatic expansion of a family of genes involved in neuronal development that was once thought to be unique to vertebrates." Among other things, the data allows scientists to more deeply analyze the creature's unique nervous system. "The central brain surrounds the esophagus, which is typical of invertebrates, but it also has groups of neurons in the arms that can work relatively autonomously, plus huge optic lobes involved in vision." Their study has been published in Nature.
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