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Ink cloud distracts predators: octopus


Octopus vulgaris / Theasereje / LicenseGFDL - Gnu Free Document License

The ink cloud emitted by an octopus when threatened aids escape because it resembles the shape of the octopus.

"When their speed alone is not enough for safety, [cuttlefish] squirt a cloud of dense, dark coloured ink that is synthesised in their bodies. This ink surprises their predators for a few seconds, which is usually enough for them to escape." (Yahya 2002:104)

"Sometimes the ink cloud itself resembles the blobby shape of an octopus and acts as a decoy, allowing the octopus to escape while the predator eyes the blob." (Crump 2005:109)
About the inspiring organism

Learn more at
Organism/taxonomy data provided by:
Species 2000 & ITIS Catalogue of Life: 2008 Annual Checklist

Bioinspired products and application ideas

Application Ideas: Shape-based jets that control shape of output. Nontoxic inks and dyes.

Industrial Sector(s) interested in this strategy: Ink-jet printing, liquid extrusion technologies, paper, textiles

Crump, M. 2005. Headless Males Make Great Lovers & Other Unusual Natural Histories. Chicago, IL: University of Chicago Press. 199 p.
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Harun Yahya. 2002. Design in Nature. London: Ta-Ha Publishers Ltd. 180 p.
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