This year we've been very fortunate to have a small group of five Bottlenose dolphins that seem to have taken up residence in Fishguard Bay. This allows us to frequently record their actions on an almost daily basis. It became apparent early on that one in particular had a strange growth on the right side of it's head close to the jaw line.
Naturally, it made it very easy to identify and pick it out amongst the other dolphins. It also sparked my curiosity and made me want to study it a bit closer, so I set myself a challenge of getting closer more detailed shots of the growth. This has taken many attempts and hundreds of images to try and catch the animal on the right side and close enough to get the detail I wanted. Being that it's the most active and playful of all five it was not an easy task. However, I have managed to build up a better picture (excuse the pun) of what's going on. The following images are the best I've been able to capture to date.
First of all I thought it was just a growth, somewhat like a skin tag gone wild so to speak, but there's more there than I thought. An image from a few weeks ago made me think I saw a tooth in the growth and that's what set the challenge off in my mind.
It would seem that this is the case. It has indeed got teeth in the growth which came as a surprise as I got better images. So I feel that this is not so much a growth but rather a birth defect which occurred in the womb.
Another surprising fact that came to light with better images is that the upper right jaw to which the growth is attached does not have any teeth at all. See images directly above and below.
It had vanished from the group for a week or so and I was quite worried about that but a few days ago it returned, to my relief.
Having watched it closely over the past weeks it does not seem to affect it to any great extent. It obviously still feeds well and looks really healthy despite the growth. It's very active and is usually the one to instigate social/play activity and frequently breaches. Playing with seaweed seems to be a favourite thing along with close touch, eg, rolling and bumping with the others which they will often do for prolonged periods between foraging.
I'll continue to follow it for the remainder of the summer and bring updates on any changes that may occur. My hope is that you all find this as interesting as I have. Ken B.


















































