Lurking in the ocean's twilight zone - an area between 650 and 3,000 feet below the surface where light rarely reaches - is the seven-arm octopus (Haliphron atlanticus). Also known as the septopus, ...

The 19-metre-long Nanaimoteuthis haggarti was a fearsome carnivore eating fish, crustaceans and many other sea creatures.

Study of fossilised beaks shows patterns of wear and suggests some ancient species were up to 19 metres long Giant “kraken-like” octopuses that used powerful beaks to crunch through bones of prey were ...

Unlike most of its invertebrate peers, octopuses gave up protective shells... But it seems that the sacrifice was totally worth it.

More than 350,000 chemicals are used worldwide, and many find their way into the ocean through plastic pollution. As plastics accumulate in coastal waters, they continuously leach bioactive additives ...

Can you imagine spending your entire life without ever touching the floor? Well, that’s the reality for this octopus. Pelagic ...

Octopuses are even more sophisticated than we thought. Despite generally being solitary animals, they can work with fish to find prey and recognise which team members aren’t helping. That is the ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The research shows how octopuses and multiple fish species work ...