|Pacific white-sided dolphin and Risso's dolphin mating. Photo by Kate Cummings|
These shots show a Pacific white-sided dolphin belly to belly with a Risso's dolphin. They're size difference is obvious-- with the white-sided being around 7-8 feet long and the Risso about 10-12.
|Pacific white-sided dolphin and Risso's dolphin mating. Photo by Kate Cummings.|
There are known hybrids between Risso's dolphins and bottlenose dolphins, but I've searched the web and have asked a few researchers but haven't found anything on a hybrid white-sided/Risso. Dolphins are extremely social and will often use sex to bond with one another, not just to reproduce. In any case, we'll be keeping our eyes out for a Pacific Risso-Sided Dolphin!