The title above does not refer to two noble creatures: it is about one noble creature, and the people of Wales.
It seems that dolphins who inhabit Cardigan Bay - off the coast of Wales - have developed a peculiar entonation, according to this from BBC NEWS:
"Ronan Hickey analysed 1,882 whistles for his masters degree in marine mammal science at University of Wales, Bangor . . . Bottlenose dolphins are talking to each other using a dialect that could be unique to Wales, claim scientists.
The whistles of dolphins in Cardigan Bay are different to those living off the Irish coast, a study has found."
Unfortunately Mr. Hickey did not return any of my calls for some follow up (I sent him a link to this Blog, isn't that enough?).
So I decided to seek commentary from another expert.
It makes me wonder if dolphins are able to develop that ever so annoying accent from Rio de Janeiro.