Risso’s Dolphins are one of the larger members of the dolphin family. They are dark gray in color with extensive white scarring along their bodies. The scars are mainly caused by their primary food source, squid, which utilize defensive sharp hooks on their tentacles. The scarring may also be caused by “raking” or biting from other Risso’s Dolphins.

Risso’s Dolphins typically travel in groups of 3-30 animals, although megapods of more than 1,000 have been reported. Little is known about this species, due to the fact that they are a pelagic species and are often found a very long way from shore.