David Fleetham / Philippine reef scene with butterflyfish. Balicasag Island is a flat island four kilometers southwest of Duljo Point off what is known as Pangalo Reef in the Philippines. (Four photographs were digita...

Alex Mustard / Spilt level view of a large female Southern Stingray (Hypanus americanus) beneath boat, Grand Cayman, Cayman Islands. British West Indies. Caribbean. March