RISSO'S DOLPHIN(Grampus griseus)
- to a maximum of 4 m
- mostly grey, with white on the belly
- dorsal and pectoral fins are dark grey
- body is usually covered with many scars and scratches; older animals may appear completely white
- large, dark grey dorsal fin, resembling that of a female killer whale
- small and bushy
- may porpoise, spyhop or breach
Group size / social behaviour
- social, usually in groups of 10 – 50 animals
- very robust head with a prominent “melon”, contrasting with a thin tail stock
Can be confused with
- killer whales or pilot whales (but color is very light grey; killer whales and pilot whales do not typically have a multitude of scars and scratches)
- may bowride on vessels, although usually avoid humans.
- have been found to depedate fish from long lines.