Octopuses

Are two arms just not enough? Learn how the other half lives with a look at octopuses.

Octopuses (or octopodes) are mollusks in the Cephelopoda (literally “head-feet”) Class, along with squids, cuttlefish, and nautilus. Unlike their relatives, most octopuses lack an external or internal shell; their squishy bodies can easily squeeze through small spaces. These creatures sport eight muscular arms used for swimming, usually lined with suction cups for walking, climbing, and grasping prey. At the center point of its arms, there’s a hard beak used to crush and eat.