Risso's Dolphins - on a boat trim 30 miles out and back from Port San Luis, Harford Pier, at Avila Beach, CA
Date 13 January 2007, 10:04
Source Cropped from rissos-dolphin_1. Photo shot with a Canon 20D w/ 100-400 mm IS lens handheld
Author Cropped from photo by Mike Baird (bairdphotos.com)
Source: https://commons.wikimedia.org/wiki/File:Risso%27s_dolphin.jpg

Risso's dolphin (Grampus griseus) is a species of dolphin in the family Delphinidae. It is commonly known as the Monk dolphin among Taiwanese fishermen. Risso's dolphins are found worldwide in temperate and tropical waters, usually in deep waters rather, but close to land.