Scientists generally believe that no deep-sea creature can detect red light, but they need to reassess that view  Researchers recently discovered a foot-long deep-sea creature of the genus Erenna with bioluminescent red lights on some of its tentacles
These red lights, which are shaped like a common food source for small, deep-sea fish, probably function as lures to attract prey
Scientists need to reconsider the belief that deep- sea creatures cannot detect red light.