A tiny octopus may look harmless, but the footage reveals rapid strikes and tight grappling with live prey. Close underwater shots capture the exact moment its arms wrap around a crab and pull it ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Florida stone crabs (Menippe mercenaria) are ...

Underwater footage of an "incredible" moment shows a marine biologist seemingly communicating with an octopus as she hunts for crabs. The images, which were shot in the waters of the Great Barrier ...

Fisherman Paul Dornom estimates he has lost up to 80% of his catch since a surge in octopus numbers was seen in the south ...

Crabs can't swim all that fast, so nature has granted them defensive traits that make them the impenetrable forts of the underwater world. Their steel-tough exoskeletons have jagged points that make ...