Dive into the depths of the ocean to discover seven rare deep-sea creatures so strange and elusive, you won't believe they ...

These creatures are so fragile that the moment they are pulled out from the water, they collapse and disappear.

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

The alien-like creature is known as Aplysia depilans, or the 'Mediterranean sea hare', a species rarely seen in the UK.

Thousands of strangers on the internet just collectively named a deep-sea creature that lives on sunken wood at the bottom of ...

Sea creatures have adapted to help them thrive in extreme environments. Unusual features allow them to live thousands of feet below the surface. Underwater robots give researchers a glimpse at some of ...

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 ...