Scientists have identified a golf-ball-sized blue octopus from deep waters near the Galápagos as a new species. The discovery ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Underwater footage of an "incredible" moment shows a marine biologist ...

Octopuses have been one of mapmakers' favorite symbols for hundreds of years—used primarily to portray threats of political movements, financial systems, warring empires and the unknown. New research ...

One pint-sized ocean rescue has been stealing hearts online for nearly a decade — and may even have the power to change how you think about plastic pollution. In a YouTube video that has racked up ...

Rare footage captured by scientists in New Zealand in 2023 shows an octopus riding on the back of a shark. In a recently released study, scientists say they still aren’t sure how the deep sea-dwelling ...

This predator can dramatically increase its reach by wielding several stinging tentacles in addition to its 8 arms. Managing multiple stinging tentacles at once presents a unique coordination ...