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Rissos dolphin.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are usually almost entirely white, Grampus griseus, San Diego, California Rissos dolphin.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are usually almost entirely white, Grampus griseus, San Diego, California Rissos dolphin surfacing with eye showing. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  San Diego, Grampus griseus Rissos dolphin, breaching. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white. San Diego, Grampus griseus A Rissos dolphin leaps from the ocean in a full breach. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus Rissos dolphin. San Diego, Grampus griseus Rissos dolphin.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are usually almost entirely white, Grampus griseus, San Diego, California Rissos dolphin.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are usually almost entirely white, Grampus griseus, San Diego, California Rissos dolphin.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are usually almost entirely white, Grampus griseus, San Diego, California Rissos dolphin.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are usually almost entirely white, Grampus griseus, San Diego, California Rissos dolphin.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are usually almost entirely white, Grampus griseus, San Diego, California Rissos dolphin.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are usually almost entirely white, Grampus griseus, San Diego, California A group of Rissos dolphins. San Diego, Grampus griseus Rissos dolphins surfacing, one spouting/blowing while others show dorsal fins.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  San Diego, Grampus griseus A group of Rissos dolphin surfaces.  Extensive scarring on adult Rissos dolphins allows identification of individuals based on their dorsal fins, provided the identification methodology incorporates scarring acquired in future years. Offshore near San Diego, Grampus griseus Rissos dolphin surfacing with eye showing. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  San Diego, Grampus griseus Rissos dolphins surfacing showing dorsal fins. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  San Diego, Grampus griseus Rissos dolphins surfacing showing dorsal fins. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  San Diego, Grampus griseus Rissos dolphin surfacing with eye showing. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  San Diego, Grampus griseus Rissos dolphin showing fresh scarring from social interactions with other Rissos dolphins.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  San Diego, Grampus griseus Rissos dolphin, dorsal fin.Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white. San Diego, Grampus griseus Rissos dolphin, dorsal fin.Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white. San Diego, Grampus griseus Rissos dolphin, dorsal fin.Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white. San Diego, Grampus griseus Rissos dolphin, dorsal fin.Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white. San Diego, Grampus griseus A Rissos dolphin spyhops, lifting its head above water for a look. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus A young Rissos dolphin calf performs a tail slap. Note the dark color on this juvenile, it has yet to acquire the white scarring that distinguishes adult Rissos dolphins.  Offshore near San Diego, Grampus griseus A group of Rissos dolphin surfaces.  Extensive scarring on adult Rissos dolphins allows identification of individuals based on their dorsal fins, provided the identification methodology incorporates scarring acquired in future years. Offshore near San Diego, Grampus griseus A group of Rissos dolphin surfaces.  Extensive scarring on adult Rissos dolphins allows identification of individuals based on their dorsal fins, provided the identification methodology incorporates scarring acquired in future years. Offshore near San Diego, Grampus griseus Rissos dolphin. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus Rissos dolphin. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus Rissos dolphin. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus Rissos dolphin. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus Rissos dolphin, dorsal fin.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  San Diego, Grampus griseus Rissos dolphin, dorsal, Grampus griseus, San Diego, California Rissos dolphin, dorsal fin.Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white. San Diego, Grampus griseus Rissos dolphin, dorsal fin.Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white. San Diego, Grampus griseus Rissos dolphin. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus Rissos dolphin. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus Rissos dolphin. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus Rissos dolphin. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus Rissos dolphin. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus Rissos dolphin. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus Rissos dolphin. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus Rissos dolphin melon and dorsal fin.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white. San Diego, Grampus griseus Rissos dolphin, dorsal fin.  Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species. White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  San Diego, Grampus griseus Rissos dolphin. Note distinguishing and highly variable skin and dorsal fin patterns, characteristic of this species.  White scarring, likely caused by other Risso dolphins teeth, accumulates during the dolphins life so that adult Rissos dolphins are almost entirely white.  Offshore near San Diego, Grampus griseus

Updated: October 20, 2017