article_snippet.sent: The footage, the first in the world, was shot by a wildlife cruise company, off the coast of Pembrokeshire.
article_snippet.sent: Dafydd Rees, who made the recording, said: ‘I’ve been working on this stretch of the coast of Pembrokeshire but have never seen anything like this stretch of the coast before.
article_snippet.sent: The footage (pictured), the first in the world, was shot by a wildlife cruise company, off the coast of Pembrokeshire .
article_snippet.sent: Dr Stringell, who has done his own research for Natural Resources Wales observed this happening on four separate occasions off the coast of Pembrokeshire.
highlights_snippet.sent: The footage, the first in the world, was shot by a wildlife cruise company, off the coast of Pembrokeshire .