The 15cm long marine worm was spotted in Rye Harbour in East Sussex (Image: Rye Harbour Nature Reserve)
People have been left confused - and a bit scared - after a weird creature was found at a harbour in England.
The critter with sharp-looking black spikes and a sandy brown body was captured as it slowly wriggled along a wet beach.
The animal was found in the coastal village of Rye, in Sussex, and was identified as a sea mouse.
Sea mice are usually located in the Atlantic and Mediterranean and can wash up to shore during periods of inclement weather.
The creature is a predator and hunts small crabs and seabed worms, according to The Wildlife Trust. Express.
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