Eye of a common parrot fish (Scarus psittacus) sleeping at night on a Sudanese reef in the Red Sea.

scarus psittacus adult alone eye sleep close up underwater shot night colour sudan tropical sea sleepy red sea scarus diurnal coral reef fish least concern june nobody common parrotfish scarus psittacus adults single lonely only solo one lone eyes sleeps dormant sleeping close ups subaquatic photos subaquatic sights seen under the water photos under the water underwater shots subaquatic image underwater view submarine images submarine sights submarine sight submarine photos submarine photo underwater views submarine photographies submarine photography underwater underwaterphoto underwaterpicture underwaterphotography underwaterphotographies underwaterphotos underwaterpictures nights nightime colours color colors tropical seas tropical oceans tropical ocean sleepiness put to sleep putting to sleep fall asleep falling asleep diurnals coral reef fishes least concern species with nobody stage of development individual enumeration sensory system physiological system organ anatomy organism rest shot atmosphere ambiance north africa africa sea marine area area indian ocean world sea and ocean scaridae perciformes teleostei actinopterygii osteichthya pisces vertebrata chordata deuterostomia coelomata bilateria metazoa opisthokonta eukaryota behavior saltwater fish fishes particularity species particularity species low risk iucn) lr iucn red list of threatened species parrotfish scarus sp parrotfish actinopterygii osteichthyes fish animal wild animal