Octopus, squid, and cuttlefish are famous for engaging in complex behavior, from unlocking an aquarium tank and escaping to instantaneous skin camouflage to hide from predators. A new study suggests their evolutionary path to neural sophistication includes a novel mechanism: Prolific RNA editing at the expense of evolution in their genomic DNA.
The study, led by Joshua J.C. Rosenthal of the Marine Biological Laboratory (MBL), Woods Hole and Eli Eisenberg and Noa Liscovitch-Brauer of Tel Aviv University, is published this week in Cell.
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