A deep-sea expedition caught a picture of elusive glass octopuses. The nearly-see-through creatures were intertwined, which could mean they were mating. Or fighting. It was taken on an undersea ...

The deep ocean is about as mysterious as the depths of outer space, and it's home to some bizarre finds, from tiny angelic creatures to giant worms.

Are you a fan of the ocean and intrigued by everything that lives in it? I certainly am, and so when I stumbled across this amazing video of a glass octopus, I couldn't stop watching it! I've never ...

Deep-sea creatures often look more like science fiction monsters than marine animals. The glass octopus is one such animal. The Schmidt Ocean Institute captured this footage of the incredibly rare ...

This rarely seen glass octopus bared all recently — even a view of its innards — when an underwater robot filmed it ...

From the octopus that walks on land to another that grows its own ‘lifejacket’, discover these unusual species ...

The nearly-see-through creatures were intertwined, which could mean they were mating. Or fighting. It was taken on an undersea expedition, which may have uncovered four new octopus species. A deep-sea ...