https://www.sciencealert.com/one-of-nature-s-blackest-colours-makes-fish-invisible-deep-in-the-ocean/amp https://www.sciencealert.com/one-of-nature-s-blackest-c

https://www.sciencealert.com/one-of-nature-s-blackest-colours-makes-fish-invisible-deep-in-the-ocean/amp https://www.sciencealert.com/one-of-nature-s-blackest-colour... >Incidentally, this is what initially piqued Karen Osborn's interest. As a research zoologist at the Smithsonian's National Museum of Natural History, she grew frustrated trying to photograph a striking black fish that had been pulled from the deep sea. "It didn't matter how you set up the camera or lighting—they just sucked up all the light," says Osborn.