Deep-sea coral reef glow-in-the-dark secrets revealed in new research

Scientists have discovered the reason why some deep-sea coral reefs glow in the dark.  Researchers from the University of Southampton found corals in deep water survived by making a special type of fluorescent protein.  The research found the proteins responsible for acting as sunblock in corals in shallow waters worked differently in deep-sea reefs.  The protein absorbs blue light and converts it, to help improve the photosynthetic capacity of algae living in the coral.