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We regularly post short Marine Wildlife Videos an Photographs with a short explanation regarding the subject and the technique used to capture the image.

All videos are made by Olivier Van den Broeck using Light & Motion video lights

and all photographs are by Greet Meulepas unless stated otherwise.

144. Day Octopus (Octopus cyanea) V (arm movement)


Subject: Inside the hull of a small wreck a Day Octopus (Octopus cyanea) is wriggling its arms (they are not tentacles). Each arm is controlled by an independent mini-brain. These mini-brains are a cluster of nerve cells, controlled in their turn by the large central brain.

Technique: The movement of these arms happens completely soundless under water. The slimy movement sound was added in post-production in order to make the scene more realistic. Sounds and music enhance the story telling aspect in film.