Skip to content
All articles
  • All articles
  • About whales & dolphins
  • Create healthy seas
  • End captivity
  • Fundraising
  • Green Whale
  • Kids blogs
  • Prevent deaths in nets
  • Scottish Dolphin Centre
  • Stop whaling

Give the ocean a chance – our message from the UN Ocean Conference

I'm looking out over the River Tejo in Lisbon, Portugal, reflecting on the astounding resilience...
We need whale poo 📷 WDC NA

Whales are our climate allies – meet the scientists busy proving it

At Whale and Dolphin Conservation, we're working hard to bring whales and the ocean into...
Humpback whale underwater

Climate giants – how whales can help save the world

We know that whales, dolphins and porpoises are amazing beings with complex social and family...
Black Sea common dolphins © Elena Gladilina

The dolphin and porpoise casualties of the war in Ukraine

Rare, threatened subspecies of dolphins and porpoises live in the Black Sea along Ukraine's coast....
WDC's Ed Fox, Chris Butler-Stroud and Carla Boreham take a message from the ocean to parliament

Taking a message from the ocean to parliament

It's a sad fact that whales and dolphins don't vote in human elections, but I...
Minke whale © Ursula Tscherter - ORES

The whale trappers are back with their cruel experiment

Anyone walking past my window might have heard my groan of disbelief at the news...
Boto © Fernando Trujillo

Meet the legendary pink river dolphins

Botos don't look or live like other dolphins. Flamingo-pink all over with super-skinny snouts and...
Tokitae in captivity

Talking to TUI – will they stop supporting whale and dolphin captivity?

Last Thursday I travelled to Berlin for a long-anticipated meeting with TUI senior executives. I...

Familiar Fins and Hybrid Dolphins

Encountering dolphins in the wild is a pleasure and a privilege, encountering dolphins known to you in the wild is even more special. Starting in 2010 we came to the Isle of Lewis to study and learn more about the population of Risso’s dolphins who use the area, five years on and we’re beginning to put together a very interesting picture.


Individual Risso’s dolphins can be identified through a variety of scars and natural markings on their bodies and fins, making it possible to recognise them year after year and to gain a deeper understanding about their needs and interestingly, their social lives. Over the years we’ve catalogued over 75 individual dolphins, including mothers and calves, groups of juveniles and groups of what appear to be individuals with stable friendships that cover multiple years. Just a few days ago we encountered a group of dolphins foraging close to the coast, on closer inspection they turned out to be individuals that we photographed engaging in the same behaviour, as a group, back in 2010. 


Another dolphin that we catalogued in 2010, and were unsure of its sex, was resighted in 2013 with a young calf – hence “it” became a “she”! This habitat is obviously important to her, and the health of her children, as we encountered her again only a few weeks ago with a young juvenile in tow.

One intriguing discovery of our time so far on this magical island off the north-west coast of Scotland (on the margins of the Arctic circle – or at least the weather sometimes makes it feel that way!) is that of possible hybrid dolphins, individuals that are a result of Risso’s dolphins mating with bottlenose dolphins. Although hybrids of other whale and dolphin species have been documented elsewhere, this is the first evidence of it happening in UK waters. The reasons for this behaviour are intriguing and the conservation implications of hybridism are unknown, but it demonstrates the importance of effective management for these individuals and also for the wider populations found in the area. Only continued monitoring will help us to understand the extent and significance of hybridism in wild dolphins.


Our survey site here on the Isle of Lewis has been proposed by the Scottish Government as a Marine Protected Area (MPA) for the resident population of Risso’s dolphins, and given that we’ve been seeing some of the same dolphins returning to the area over multiple years and that possible hydrid dolphins have been documented using the area, we believe the case for this important designation is clear.

About Nicola Hodgins

Policy Manager at WDC