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

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 ...

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 ...

A RARE sea creature has been found by a little boy on a popular UK beach. The adventurous five-year-old stumbled up the ...

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 ...