Alex Mustard / Blackspot snapper (Lutjanus ehrenbergii). Beacon Rock, Sinai, Egypt. Red Sea.

David Hall / A large, mixed aggregation of fish swimming through a reef cut, including (from top to bottom) Eyestripe surgeonfish (Acanthurus dussumieri), Yellowtail fusiliers (Caesio cuning), Sergeant damselfish...

Noemie Stroh / Blackspot snappers (Lutjanus ehrenbergii) schooling on a coral reef, Sataya, Red Sea, Egypt, August.

Frederique Olivier / School of Blackspot snapper (Lutjanus ehrenbergii), Uepi Island, Solomon Islands.