Individual Risso’s dolphins can easily be recognised by their unique dorsal fins which can be a variety of shapes and sizes and covered in scars and scratches. These dolphins have been known to produce a single offspring once every 2 – 3 years on average while they are fertile. They only use them to get prey, not to chew as food gets swallowed. Risso’s normally like the company of several other pod mates, sometimes lots, and although they’re normally boat-shy, they can be seen leaping out the water, breaching, tail and head-slapping and generally having a very active time. They may have 2 to 7 pairs of them. One of the telling signs that you are indeed looking at the Risso’s Dolphin is the design of their head which is shaped like a square. They are gray or brown at birth with some white on the belly. It’s mostly just down to social interactions and tussles among themselves, but other causes of scars can be their contact with prey, such as squid and octopuses. As they get older though they will turn silver colored and then when they are close to mature they will turn black. Both locations appear to be key habitat and the findings from our research are helping to support efforts to obtain greater protection for the dolphins and their homes. Squid, squid and more squid! With the larger pods, there are plenty of subgroups found within. The mating season and the time of year for birth vary by location of the Risso’s Dolphins. Scarring is a common feature in toothed whales, but Risso’s dolphins are, without any doubt, the most scarified cetaceans. Risso’s dolphin is not currently considered endangered. One of the interesting looking dolphins out there is the Risso’s Dolphin. By supporting WDC, you can help Risso’s dolphins to live safe and free. This can be especially useful in large pods where one dolphin can easily get lost in the group. These dolphins generally grow to be around 9 – 11 ft in length and weigh between 600 – 1100 pounds, however some dolphins may grow to be as large as 14 ft with the female dolphins growing to be slightly larger than their male counterparts. Find out more about WDC's vital work to protect Risso's dolphins in Scotland and Wales. Although they start out in life a grey/olive brown colour, as they get older they get whiter and whiter – a result of numerous scars and scratches from other Risso’s dolphins and their favourite food item, squid! Without interventions, their numbers could drop quickly in the future. However, risks such as pollution, noise, and lack of food can be problems to look at. Risso’s dolphins are predominantly deep water lovers and are therefore relatively unstudied, however in several places around the world they can be found within only metres of the coast enabling researchers to learn so much more about them. Busy and incredibly sociable. Even though such information continues to circulate, it isn’t a region where they have been confirmed. They prefer deeper water and are usually found on the edge of continental shelves however there are several places around the world where they are found much closer to shore, where there are steep drop-off’s or plenty of food. They can weigh up to 880 pounds. Battle scars. Risso’s dolphins are predominantly deep water lovers and are therefore relatively unstudied, however in several places around the world they can be found within only metres of the coast enabling researchers to learn so much more about them. They can been found swimming in the Atlantic, Indian and Pacific oceans and their distribution range spreads from the Gulf of Alaska to Tierra del Fuego. Risso's dolphin (Grampus griseus) is the only species of dolphin in the genus Grampus.It is commonly known as the Monk dolphin among Taiwanese fishermen. They are unique in how they look and so they are very appealing to both the common observer and to researchers. They are found in many locations but not the Black Sea. They are one of the few dolphin species that has this high of numbers so there isn’t as much conservation in place for them. Some of the closest related species to these dolphins include: pilot whales (Globicephala spp.

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