#MarineWildlife - Are 'killer seals' feasting on porpoises off the British coast? Mail Online seems to think so – and presents some shocking evidence.
The video above appears to show a grey seal tearing at the flesh of a porpoise it had killed off Pembrokeshire recently.
While it's not rare to see such seals attack other marine mammals in continental Europe, this is the first time they've been spotted anywhere near Britain or Ireland.
Dafydd Rees, who works with a wildlife cruise company and shot the footage, said he'd "never seen anything like it before" on that stretch of coast.
Britain is already home to nearly half the world's entire population of grey seals. But those resident locally have never before been known to eat anything more than fish.
Experts fear, however, they they may be developing a taste for porpoises caught in fishing nets – and graduating from weakened specimens to healthy young porpoises for their energy-rich layer of fat.
And it's prompted some fears that people swimming near seals might be next on the menu!
Mail Online has more on the story HERE.