John Maher recently went on a diving trip to Guadalupe Island, Mexico. While there he assisted great white shark researchers to help identify specific sharks as part of a tracking and conservation program. He says, “I composed this image from a cage hanging 40 feet below a a ship. Water was clear, had a strong current, and was teeming with fish. This big female graciously glided in from the depths and introduced herself to our fellow cage divers. “This photo was selected for March 1,2018 Daily Dozen.