Squid, octopus, and cuttlefish—even to scientists who study them—are wonderfully weird creatures. Known as the soft-bodied or coleoid cephalopods, they have the largest nervous system of any ...

In the North Sea, cephalopods are appearing in growing numbers. Fishermen are catching more squid and octopus, a trend likely ...

They change shape and color, and squirt ink. But they also will return your gaze, "as if they're scrutinizing you." ...

Octopus arms have an axial nerve cord built in repeating segments, the first case of nervous system segmentation documented ...

Cephalopods such as octopus and squid evolutionarily diverged from mollusks like slugs and snails. These animals have elaborate compact nervous systems located within specialized arm appendages, which ...

We named him Squirt – not because he was the smallest of the 16 cuttlefish in the pool, but because anyone with the audacity to scoop him into a separate tank to study him was likely to get soaked.

Design by Meghana Tummala. Buy this photo. Amid the glitz and glamour of the 93rd Academy Awards, an unusual competitor emerged for the title of Best Documentary. Created by South African ...

The mimic octopus, known to scientists as Thaumoctopus mimicus, is one of the few animals able to impersonate several other ...

A lab in Massachusetts may have finally found an eight-armed cephalopod that can serve as a model organism and assist scientific research. By Elizabeth Preston Photographs and Video by Matt Cosby The ...

Deep below the surface of the Salish Sea lurks a nine-brained, eight-legged, blue-blooded creature that can change into any color its three hearts desire. Its soft body can weigh more than 100 pounds ...

Photographs taken off Berry Head, Devon, show a common octopus wrapping its arms around the dorsal fin of a Risso’s dolphin.