For the first time ever, marine biologists have measured how much energy octopuses really need to change color — and it's a ...

The chambered, or pearly, nautilus (Nautilus pompilius) is a charismatic cephalopod species known for its exceptional spiraling, chambered shell. It belongs to a family that has barely changed since ...

The findings are the first to quantify how much work goes into switching on chromatophores, the specialized color-changing ...

Some bigger specimens been found, however. The largest so far was 1.8 metres long and weighed 5.9 kilogrammes. But this is still tiny in comparison to the biggest cephalopod species, the colossal ...

Octopuses are masters of camouflage and disguise. An alarmed octopus can vanish even while you watch, flawlessly transforming ...

OIST researchers have recently discovered a new species of parasitic copepod, which was responsible for the death of a large proportion of squid eggs in the tanks, and they have also developed an ...