After a man witnessed an “alien” on a British beach, the world as we know it may be about to alter forever.

The terrifying sighting was described as a “fluorescent green thing with weird needles” coming out of its wiggling body.

But don’t worry, what Mike Arnott observed on Portobello Beach in Edinburgh was not something out of this world.

It was, indeed, a rare Sea Mouse.

The Wildlife Trust describes the sea mouse as a marine worm covered in bristles that gives it a fuzzy appearance.

“At the fringes are beautiful iridescent bristles that shimmer blue, green and gold,” they noted.

“The sea mouse is an active predator, hunting small crabs and other worms on the seabed.”

When Mike, a 33-year-old beachgoer, came discovered a Sea Mouse, he had no idea what it was.

Before realising it was living, the engineer mistook it for a moss-covered pinecone.

He admitted that the possibility of it being an alien “did cross his mind,” as he had no idea what the brilliant green spiky thing was.

He explained, “I saw this fluorescent green thing with weird needles – I had no idea what it was.”

“The bright green and gold colours drew me straight to it.”

“I flipped it over and saw it had lots of tiny legs – I had never seen anything like it.”

“It being an alien definitely crossed my mind – or I thought it might be something from way out in the deep sea.”

The Scottish Wildlife Trust’s Pete Haskell offered his assistance in identifying the alien-like animal.

He claimed it was a washed-up “sea mouse,” which is a species of worm.

“It looks a bit strange being out of the water, but it’s a type of marine bristle worm that’s found all around the UK coast,” he explained.

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