The animal was spotted more than 5,500 feet underwater by a research expedition. The Ocean Exploration Trust's Nautilus mission ran into the octopus while live-streaming. Rare footage shows an unusual ...

If you are hiking off the coast of northern Washington and exploring tidepools, the last thing you would probably expect to find would be a giant Pacific octopus swimming around in it! But a group of ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. NORTH PACIFIC OCEAN (KFOR/Storyful) — ...

An eight-armed blob drifted through the ocean, its “large” fins flapping by its side and propelling it through the water. Little did the deep-sea creature know, it was actually swimming by an ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American The vast majority of octopus species live ...