The ocean is full of surprises, and scientists are still finding creatures that seem almost unreal. From tiny reef animals to ...

Dive into the enchanting world of the octopus, an extraordinary marine wonder with eight flexible arms and a unique ...

"Beautiful, unique, and valuable." Scientists stunned after making ghostly discovery deep inside 'underwater hotels': 'We can ...

On this episode, Mark and the crew are back at Grand Cayman Island… and on this adventure they're going night diving to ...

Alexander the Great dived into the unknown, facing giant crabs, pearls, and mysterious depths in a legendary underwater ...

For much of his life, Patrick Webster has slipped into a wetsuit, strapped on his elaborate camera system and dove into the ...

An incredibly rare deep-sea fish has been spotted on the California coast.

If you want a calm, wow filled afternoon, do the tunnel walk last so you can linger and watch the fish drift above you, it ...

Brine pools, extremely salty, oxygen-free underwater lakes, are lethal to most marine life but teem with resilient microbes.

These episodes of sudden light deprivation are slowly making several underwater organisms vulnerable to collapse.

Wondering about the world's weirdest sea creatures? We've compiled this list of the 20 weirdest animals in the ocean to show ...

Scientists have finally solved a decades-old mystery with the first-ever live encounter of a ginkgo-toothed beaked whale.