How Does An Octopus Change Colour?
Dazzling colour changes and perfect camouflage make octopus a favourite with everybody diving in Phuket but how do they perform this magic trick, well it's not mirrors, sorcery or witchcraft it's a complex combination of muscle, nerves, brain and skin pigments. By far the most common octopus we see when diving in Phuket is the day octopus (octopus cyanea) so we'll base our facts around this very convenient creature (we don't do night dives). That's what the cells are called, octopus have thousands of different colour chromataphores to every square inch of skin. Think of them as tiny balloons filled with coloured ink. The 'ink balloons' on most octopus come in black, brown, red, or [...]Read The Full Story