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

Like its close relatives, the squid and octopus, the cuttlefish is equipped with an ink sac that can help it make a last-ditch escape from predators that hunt by sight. The cuttlefish can eject ...

Carefully remove the entrails and the ink sac from the main body. Pull out the cuttlebone (or squid quill), then rinse the cuttlefish or squid thoroughly, pulling off any membranes. Cut into ...

Cuttlefish and squid are masters of camouflage thanks to the chromatophores in their skin. The animals can make these tiny, pigment-filled sacs expand ... squirt clouds of ink, partly made of ...