First reported addition of a gene to a cephalopod yields cuttlefish that glow red under fluorescent light

Science reports that Columbia University neuroscientist Tessa Montague produced seven cuttlefish that glow red under fluorescent light after six years and thousands of embryos. The synthetic fluorescent-protein gene is in every cell, including eggs and sperm, and their offspring glow too. The work, posted as a preprint, is described as the first successful addition of a new gene to a cephalopod. Montague hopes to make neurons fluoresce as they fire to study how cuttlefish brains control camouflage.