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

A young rock-pooler discovered a rare ' alien-like ' winged creature washed up on a UK beach. Charley Taviner, five, was ...

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 ...

Everything really is bigger - and stranger - in Texas. This year proved the Lone Star State is full of wild surprises after several Texans spotted some rare and unusual encounters with sea creatures ...

It secretes toxins and is a very unusual find ...

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 ...

In a remarkable encounter filmed at more than 3,700 feet below the surface of the Indian Ocean, a deep-sea creature resembling an alien glyph has captivated millions online. The footage shows the ...

An alien-like Mola mola surprised surfers as it surfaced along the San Diego coastline, ultimately dying and washing ashore. “A rare Mola mola (ocean sunfish) washed up on our shore at Cardiff State ...