In the animal kingdom, black is more than just a shade—it’s a survival tool. But some creatures take black to the extreme, evolving ultra-black coloration that is so dark that it absorbs nearly all light. This rare adaptation has evolved independently in unrelated species, from deep-sea fish and insects to birds and reptiles, each using it in unique ways.
Scientists are now uncovering the secrets behind ultra-black, revealing its fascinating biological structures and potential technological applications. By studying these species, researchers hope to develop advanced materials that could build the future. But which animals have specifically evolved this trait? And for what reason did nature see fit to gift them this feature? Click through this gallery to find out.