Kat Zhou has won the Aquatic Life category in the 2025 BigPicture Natural World Photography Competition, while a shot of a ...

A new species of flapjack octopus, with massive eyes and blood-red tentacles, has been discovered from a deep-sea canyon off the coast of Australia. The new species has been named Opisthoteuthis ...

A Casper octopus photographed deep underwater. Discovered in 2016, this is the first time this rare octopus species—yet to receive its scientific name—has been seen in the Southern Pacific.

Unlike other octopus species, dumbo octopuses don't have ink sacks, presumably because they don't encounter as many predators at such great depths. 5. of 11. Blue-Ringed Octopus .

But in Jervis Bay, Australia, unusually large numbers of one species — Octopus tetricus, better known as the gloomy octopus — gather at sites affectionately nicknamed Octopolis and Octlantis.

A new species of octopus may have just been discovered off the coast of Costa Rica. It was found in a rare brooding site that marks only the third octopus nursery known to exist in the world.

Scientists have discovered at least four new species of octopus in the deep waters of a 100-square-mile area near Costa Rica, officials from the Schmidt Ocean Institute said on Tuesday.