The active camouflage displayed by octopuses is unrivaled, but we don't have a clear idea of what it costs the octopus to change its color and, in some cases, texture.

An underwater photographer spotted a beautiful underwater show as a radiant octopus dramatically changed their colourful ...

Although no other octopus is known to look after their eggs for such a long time, virtually all share the same fate: inevitable death. Since male octopuses don’t survive for long after sex, the sea is ...

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 ...