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 ...

Amba gestures insistently: big octopus! You look where he’s pointing. Nope: nothing. Wait. Look again. That patch of dark, velvety coral, that one over there. That’s no coral. That’s a day ...

And near coral reefs, where competition for food is particularly fierce, nature has cooked up an extraordinary solution: octopus and fish teaming up to hunt. This collaboration isn't just about ...

Octavia is a day octopus, and Finn is a coral trout. This kind of collaboration isn’t unique to the ocean — on land, other species have also developed remarkable partnerships. Take ...

The giant Pacific octopus grows bigger and lives longer than any other octopus species. The size record is held by a specimen that was 30 feet across and weighed more than 600 pounds. Averages are ...

A photographer and videographer had a once-in-a-lifetime opportunity to swim with a blanket octopus when he saw it in the ...