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Cephalopod Ink

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Almost all cephalopods- the tentacled class of marine mollusks that include the octopus, squid, and cuttlefish- have the ability to eject dark ink from their body as a method of escaping predators. The melanin-based ink is stored in an ink sac until it is released to create a dark cloud in the water, giving the cephalopod time to flee from danger.

Cephalopod ink is mainly used in cooking to create dark-colored foods or as medium for painting. This sample however has not been preserved for consumption. Please do not eat. 

Vial contains approximately 5mL of ink.

further research

Cephalopod ink is a dark-coloured ink released into water by most species of cephalopod , usually as an escape mechanism. All cephalopods, with the exception of the Nautilidae and the Cirrina (deep-sea octopuses), are able to release ink.

The ink is released from the ink sacs (located between the gills ) and is dispersed more widely when its release is accompanied by a jet of water from the siphon. Its dark colour is caused by its main constituent, melanin . Each species of cephalopod produces slightly differently coloured inks; generally, octopuses produce black ink, squid ink is blue-black, and cuttlefish ink is a shade of brown.

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Cephalopod Ink

Cephalopod Ink

$4.00
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