Compared to the complexity of an octopus's arms, our own bones seem as rigid as tree branches. The flexible, boneless limbs of cephalopods stand out with their construction and capabilities, which ...

Compared with the arms of an octopus, our own bony limbs are about as flexible as old tree branches. It stands to reason that ...

This rarely seen glass octopus bared all recently — even a view of its innards — when an underwater robot filmed it gracefully soaring through the deep waters of the Central Pacific Ocean.

Looks can be deceiving. That's definitely true for the blue-ringed octopus. It's tiny, stunningly beautiful and looks ...