The main component of common cuttlefish ink — melanin — strongly sticks to shark smell sensors, possibly explaining why the predators avoid ink.

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 ...

Once a year, at the beginning of the Southern winter, a bay on the South coast of Australia becomes home to the only known mass spawning aggregation of cuttlefish in the world. Over a hundred ...