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Cuttlefish masters of disguise despite colorblindness

lecting data to test see whether this is really the case."

In addition to looking at contrast between different objects, Mäthger and her colleagues are testing a variety of other optical clues, in particular, cuttlefish perception of object edges, brightness, and sizes of objects.

Cuttlefish are cephalopods, relatives of octopuses and squid, and are found in all marine habitats worldwide; they are particularly abundant around coral reefs and temperate rock reefs in which the visual habitat is richly varied. Cephalopods can change their appearance with a speed and diversity unparalleled in the animal kingdom. Some squids, octopuses, and cuttlefish can show 30-50 different appearances. Their sophisticated neural control of the skin make cuttlefish an excellent model for studying camouflage.


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Source:Marine Biological Laboratory


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