How do cuttlefish change color so quickly?
Quick Answer
Cuttlefish use skin cells called chromatophores, plus reflective cells, to change color and pattern almost instantly. They control these cells with nerves from the brain.
The Full Story
Cuttlefish are masters of camouflage because their skin contains specialized cells that can expand or contract very rapidly. Chromatophores hold pigments, while iridophores and leucophores reflect light to create shimmering and pale effects. By sending nerve signals to these cells, a cuttlefish can match backgrounds, flash warnings, or communicate with other cuttlefish. The change can happen in less than a second. This makes them one of the most visually dynamic animals in the sea.
Key Facts
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