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 ...

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 ...

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 ...

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 ...

What would you do if a giant Pacific octopus decided it wanted your diving equipment and didn’t let go? Do you think you’re strong enough to avoid getting your equipment, or yourself, pulled away by ...

A British holiday maker has struck up a friendship with a little octopus in Cyprus – meeting underwater every day. Matthew Hyatt, 28, met the sea creature when he was investigating a shipwreck nearly ...