Sue Flood / Risso's dolphins off California coast (Grampus griseus) Pacific USA

Doug Perrine / Risso's dolphins underwater {Grampus griseus} white skin due to scarring from fighting, Azores, Portugal, North Atlantic (Non-ex).

Mark Carwardine / Pod of Risso Dolphin (Grampus griseus) at surface, Baja California, Mexico.

Hiroya Minakuchi / Risso's Dolphin (Grampus griseus) breaching, Monterey Bay, California

Hiroya Minakuchi / Risso's Dolphin (Grampus griseus) surfacing, Monterey Bay, California

Hanne & Jens Eriksen / Risso's dolphin (Grampus griseus) breaching, Oman, November

Suzi Eszterhas / Risso's dolphin (Grampus griseus) surfacing, Baja California, Mexico

Suzi Eszterhas / Risso's dolphins (Grampus griseus) two surfacing, Baja California, Mexico

Suzi Eszterhas / Risso's dolphin (Grampus griseus) surfacing, Baja California, Mexico

Suzi Eszterhas / Risso's dolphin (Grampus griseus) group of four surfacing, Baja California, Mexico

Suzi Eszterhas / Risso's dolphin (Grampus griseus) surfacing, Baja California, Mexico

Rebecca Robinson / Illustration of the diving and breaching behaviour of Rissos Dolphin (Grampus griseus).