Cuttlefish are molluscs in the class Cephalopoda, along with octopus and squid, and are believed to be among the most intelligent invertebrates with a large brain-to-body size ratio.
Like some other cephalopods, they have an almost chameleon-like ability to rapidly change their coloring for camouflage and for communication.
Cuttlefish lay their eggs deep within the arms of branching coral or in holes on the reef. Man-made debris also provides suitable protection for the eggs as they develop.
The juvenile develops inside the case, feeding on the yolk sack, until the moment of birth.
This video shows flamboyant cuttlefish hatching during a dive trip at the Lembeh Strait in Indonesia.
Matthew Oldfield is a freelance photographer based in Bali, Indonesia, specializing in editorial and documentary images from both above and below the waves. He works primarily with charities, NGO’s, and other organizations working to conserve the environment, endangered species, and disappearing cultures.
Matthew is on Twitter @matthewoldfield. More of his photos can be found at matthew-oldfield-photography.com
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