Scientists have found ancient nail tooth shark fossils deep inside Mammoth Cave in Kentucky, revealing new information about ...

A secret tunnel, a hidden sea cave, and a history full of smugglers—Sunny Jim’s Sea Cave in La Jolla, California, is unlike ...

A cave diver's paradise, the Bahamas is home to an extensive network of life-sustaining underwater caverns chock-full of history—and a whole lot of mystery.

Saudi Arabia's newest ultra-luxury mountain hideaway attracts international visitors off the beaten path with premium rates ...

From crystal-clear waters to amazing rock formations, cave swimming is an adventure that is both thrilling and peaceful. Here ...

The sea cucumber’s color is “unique,” researchers said, and its smaller number of tentacles (15 compared to 18 found in other ...

Spelunking, or cave exploring, is an adventure of a lifetime for those who wish to discover the hidden wonders beneath the ...

The cave has given researchers a unique window inside these rocks ... filled with marine invertebrates called crinoids, or sea lilies, that attached themselves to the sea floor like plants.

Eunice siphoninsidiator, or the tube ambushing marine bristle worm, was discovered within the structure of glass sponges by a ...

A new species of shark has been discovered a Mammoth Cave National Park, where fossil records have revealed more than 70 ...

Researchers inside a deep-sea vehicle collected sea cucumbers from ... Large' creature with 'long' limbs found lurking in Thailand cave. It's a new species → Prehistoric creature — with ...