Idiacanthus (IMAGE) Duke University Caption This deep-sea dragonfish has ultra-black skin capable of absorbing the bioluminescent light that might blow its cover. Credit Photo by Karen Osborn, Smithsonian National Museum of Natural History. Usage Restrictions Please credit Karen Osborn, Smithsonian National Museum of Natural History License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.