Unlike the octopus's arms, which that animal often uses to move and carry objects, the cuttlefish's eight arms are specialized for grasping prey after the cuttlefish captures it with its two elongated ...

Cuttlefish, along with octopuses and squid, are cephalopods—animals from an ancient branch of the tree of life that have been trolling the oceans for more than 500 million years. Cuttlefish were ...