21/07/2026
Risso’s dolphin (Grampus griseus) is the only species of the genus Grampus in the family Delphinidae (dolphins). Some of the most closely related species to these dolphins include: pilot whales (Globicephala spp.), pygmy killer whales (Feresa attenuata), melon-headed whales (Peponocephala electra), and false killer whales (Pseudorca crassidens).[6] These dolphins grow to be about 10 ft in length and can be identified by heavy scarring that appears white.[7] They are located worldwide in cold to temperate waters, but most typically found along continental shelves due to their eating habits. Risso’s dolphins have a diet that contains primarily cephalopods.[8] They are able to search for prey at various depths due to their ability to reach depths of almost 600 m (2,000 ft). Individuals typically travel in pods ranging from 10 to 50 dolphins, with which they form tight social bonds.
