The Rock Pool Project in Plymouth says the non-native sea hare looks "alien-like".

CHARLOTTE, N.C. — A marine creature that resembles the alien E.T. has been found growing in a prehistoric area of eastern Pacific seafloor rock. The “E.T. sponge” has been classified as a new species ...

Thirty years ago in a quiet municipality of southern Brazil, three girls came face to face with an alien-like creature that would haunt them for decades.

Charley Taviner, five, was following a crab when he found what he thought was a huge lump of seaweed. But it turned out to be Aplysia depilans - or the "Mediterranean sea hare" - a species rarely seen ...

The alien-like creature is known as Aplysia depilans, or the 'Mediterranean sea hare', a species rarely seen in the UK. Aquarium and Research Facilities Technician at the Marine Biological Association ...

A young rock-pooler discovered a rare ‘alien-like’ winged creature washed up on a UK beach. Charley Taviner, five, was following a crab when he found what he thought was a huge lump of seaweed. But it ...

A pair of panamic green moray eels photographed in the Sea of Cortez off La Paz, Mexico. (Ullstein Bild / via Getty Images) What has many rows of teeth, a terrifying set of jaws and a corpse-like ...